On This Day in Tech History

Stories Published|November 21|Throughout History

Historic Tech Events

Guggenheim Museum opens in New York City

Guggenheim Museum opens in New York City

1959

On October 21, 1959, on New York City’s Fifth Avenue, thousands of people line up outside a bizarrely shaped white concrete building that resembled a giant upside-down cupcake. It was opening day at the new Guggenheim Museum, home to one of the world’s top collections of contemporary art.

The Battle of Trafalgar Began

The Battle of Trafalgar Began

1805

In one of the most decisive naval battles in history, a British fleet under Admiral Lord Nelson defeats a combined French and Spanish fleet at the Battle of Trafalgar, fought off the coast of Spain.

Alfred Bernhard Nobel is Born

Alfred Bernhard Nobel is Born

1833

Alfred Bernhard Nobel was a Swedish chemist, inventor, engineer and businessman. He is known for inventing dynamite as well as having bequeathed his fortune to establish the Nobel Prizes. He also made several important contributions to science, holding 355 patents in his lifetime.

Stories Published in 2025

/how-toto-reimagines-multi-head-attention-for-multivariate-forecasting feature image

#AI-FORECASTING

How Toto Reimagines Multi-Head Attention for Multivariate Forecasting

Language Models (dot tech)

Language Models (dot tech)

October 21, 2025

/the-time-series-optimized-transformer-setting-new-standards-in-observability feature image

#AI-FORECASTING

The Time Series Optimized Transformer Setting New Standards in Observability

Language Models (dot tech)

Language Models (dot tech)

October 21, 2025

/kevan-dodhias-builder-journey-to-creating-the-new-policy-layer-for-ai-agents feature image

Kevan Dodhia’s Builder Journey to Creating the New Policy Layer for AI Agents

Jon Stojan Journalist

Jon Stojan Journalist

October 21, 2025

/debugging-disconnected-gradients-in-tensorflow-step-by-step feature image

#TENSORFLOW-DEBUGGING

Debugging Disconnected Gradients in TensorFlow Step by Step

Tensor Flow - [Technical Documentation]

Tensor Flow - [Technical Documentation]

October 21, 2025

/why-gradienttape-is-the-most-underrated-feature-in-tensorflow feature image

#TENSORFLOW-GRADIENTS

Why GradientTape Is the Most Underrated Feature in TensorFlow

Tensor Flow - [Technical Documentation]

Tensor Flow - [Technical Documentation]

October 21, 2025

/cloud-compliance-blueprint-at-mufg-building-trust-into-transformation feature image

#MUFG-CLOUD-COMPLIANCE

Cloud Compliance Blueprint at Fortune Global 500 Investment Bank: Building Trust into Transformation

Jon Stojan Journalist

Jon Stojan Journalist

October 21, 2025

/building-a-greener-tomorrow-how-supply-chain-innovation-uplifts-communities-worldwide feature image

#ELECTRIC-VEHICLE-SUPPLY-CHAIN

Building a Greener Tomorrow: How Supply Chain Innovation Uplifts Communities Worldwide

Jon Stojan Journalist

Jon Stojan Journalist

October 21, 2025

/smarter-databases-leaner-systems-how-innovation-is-redefining-data-management feature image

#AI-IN-DATA-MANAGEMENT

Smarter Databases, Leaner Systems: How Innovation Is Redefining Data Management

Jon Stojan Journalist

Jon Stojan Journalist

October 21, 2025

/asifiqbal-saiyed-redefines-cloud-data-engineering-with-automated-ai-driven-ingestion-framework feature image

#CLOUD-DATA-ENGINEERING

Redefining Cloud Data Engineering With Automated, AI-Driven Ingestion Frameworks

Jon Stojan Journalist

Jon Stojan Journalist

October 21, 2025

Stories Published in 2024

/what-does-the-worlds-first-ai-treaty-mean-for-the-future-of-ai feature image

What Does the World's First AI Treaty Mean for the Future of AI?

October 21, 2024

/how-to-create-a-content-planner-and-contact-list-with-notion feature image

#SOCIAL-MEDIA-PLANNER

How to Create a Content Planner and Contact List With Notion

productiveimpact

productiveimpact

October 21, 2024

/5-key-updates-unveiled-at-openais-devday-2024 feature image

5 Key Updates Unveiled at OpenAI's DevDay 2024

October 21, 2024

/how-to-create-custom-transitions-in-ios-18-30daysofswift feature image

How to Create Custom Transitions in iOS 18 - #30DaysOfSwift

October 21, 2024

/the-cissp-guide-you-thought-you-needed-but-didnt feature image

The CISSP Guide You Thought You Needed (But Didn’t)

October 21, 2024

/why-does-the-sec-attack-crypto-market-makers feature image

Why Does the SEC Attack Crypto Market Makers?

Sergei Gorshunov

Sergei Gorshunov

October 21, 2024

/how-to-design-user-centric-web3-applications-dapps-tips-and-tricks feature image

How to Design User-Centric Web3 Applications (DApps): Tips and Tricks

October 21, 2024

/lumoz-pioneering-blockchain-scalability-with-op-stack-and-zk-innovation feature image

#TECH-COMPANIES

Lumoz: Pioneering Blockchain Scalability With OP Stack and ZK Innovation

Lumoz (formerly Opside)

Lumoz (formerly Opside)

October 21, 2024

/the-blockchain-is-creating-new-standards-for-decentralized-mobile-networks feature image

#TELECOMMUNICATION

The Blockchain is Creating New Standards for Decentralized Mobile Networks

Shubham Malhotra

Shubham Malhotra

October 21, 2024

Stories Published in 2023

/i-am-not-a-humorist-but-i-am-a-first-class-foola-simpleton feature image

I am not a humorist, but I am a first-class fool—a simpleton

October 21, 2023

/10-21-2023-noonification feature image

The Noonification: Everything You Need to Know About Account Based Marketing (10/21/2023)

October 21, 2023

/creating-your-own-3d-shooter-using-the-react-and-threejs-stack-part-1 feature image

Creating Your Own 3D Shooter Using the React and Three.js Stack — Part 1

October 21, 2023

/the-president-and-board-of-directors-will-succeed-her feature image

THE PRESIDENT AND BOARD OF DIRECTORS WILL SUCCEED HER

October 21, 2023

/in-drawing-mrs-edyys-portrait-it-has-been-my-purpose-to-restrict-myself feature image

IN DRAWING MRS. EDYY'S PORTRAIT IT HAS BEEN MY PURPOSE TO RESTRICT MYSELF

October 21, 2023

/how-to-select-colors-and-determine-shades-for-different-states-hover-active-press-disable feature image

#UI-DESIGN-GUIDE

How to select colors and determine shades for different states: Hover, Active, Press, Disable

October 21, 2023

/everything-you-need-to-know-about-account-based-marketing feature image

#ACCOUNT-BASED-MARKETING

Everything You Need to Know About Account Based Marketing

October 21, 2023

/the-zcash-zec-swot-analysis-reviewing-an-og-in-the-privacy-sector feature image

The Zcash (ZEC) SWOT Analysis: Reviewing an OG in the Privacy Sector

Andrey Didovskiy

Andrey Didovskiy

October 21, 2023

/miss-longestaffes-lover feature image

MISS LONGESTAFFE'S LOVER

Anthony Trollope

Anthony Trollope

October 21, 2023

Stories Published in 2022

/the-possibility-of-the-finite-and-yet-unbounded-universe feature image

The Possibility of the "Finite" and Yet "Unbounded" Universe

Albert Einstein

Albert Einstein

October 21, 2022

/impact-of-quantum-computing-on-software-development feature image

#QUANTUM-COMPUTING

Impact of Quantum Computing on Software Development

Sterling Technolabs

Sterling Technolabs

October 21, 2022

/how-to-use-anus-quantum-random-number-generator-in-your-smart-contracts feature image

How you can use Quantum random numbers as a public good, on 13 smart contract protocols

October 21, 2022

/the-developer-who-discovered-bitcoins-original-codebase-jim-blasko feature image

The Developer Who Discovered Bitcoin's Original Codebase, Jim Blasko

Olayimika Oyebanji

Olayimika Oyebanji

October 21, 2022

/what-are-the-challenges-of-learning-new-javascript-frameworks-or-grapecity-javascript feature image

What Are the Challenges of Learning New JavaScript Frameworks? | GrapeCity JavaScript

October 21, 2022

/a-propublica-reporters-investigation-into-the-scamming-world feature image

A ProPublica Reporter's Investigation Into the Scamming World

October 21, 2022

/the-wolverine-movies-in-order feature image

The Wolverine Movies in Order

October 21, 2022

/how-retailers-can-leverage-personalization-to-drive-customer-centricity-in-the-metaverse-era feature image

How Retailers Can Leverage Personalization to Drive Customer Centricity in the Metaverse Era

Juan C. Guerrero

Juan C. Guerrero

October 21, 2022

/is-it-too-late-to-buy-cryptocurrencies-or-is-2022-the-perfect-year-to-invest feature image

#CRYPTOCURRENCY-INVESTMENT

Is It Too Late To Buy Cryptocurrencies, Or Is 2022 The Perfect Year To Invest?

Sunday Adenekan

Sunday Adenekan

October 21, 2022

Stories Published in 2021

/the-metaverse-everything-you-need-to-know feature image

#GAMING-METAVERSE

The Metaverse: Everything You Need to Know

October 21, 2021

/polypanes-founder-kilian-valkhof-on-building-the-browser-he-wished-he-had feature image

#STARTUPS-OF-THE-YEAR

Polypane's Founder Kilian Valkhof on Building the Browser He Wished He Had

October 21, 2021

/the-metaverse-from-websites-to-webspaces-with-charles-read feature image

#WRITING-PROMPTS

The Metaverse: From Websites to 'Webspaces' With Charles Read

October 21, 2021

/could-bitcoin-actually-replace-usd-as-the-prominent-global-currency feature image

#CRYPTOCURRENCY

Could Bitcoin Actually Replace USD as The Prominent Global Currency?

Ales Kavalevich

Ales Kavalevich

October 21, 2021

/data-visualization-for-dummies-3-simple-charts-with-less70-lines-of-code feature image

#DATA-VISUALIZATION

Data Visualization for Dummies: 3 Simple Charts with <70 Lines of Code

Maksym Mostovyi

Maksym Mostovyi

October 21, 2021

/figthing-the-bad-actors-with-machine-learning-startup-interview-with-harsh-pandya-ceo-giant-oak feature image

#STARTUPS-OF-THE-YEAR

Figthing the Bad Actors with Machine Learning: Startup Interview with Harsh Pandya, CEO Giant Oak

October 21, 2021

/success-is-gratitude-when-you-wake-up-and-having-no-regrets-before-you-sleep feature image

#STARTUPS-OF-THE-YEAR

Success is Gratitude When You Wake Up and No Regrets Before You Sleep

October 21, 2021

/women-that-run-ebay-and-ecommerce-businesses-are-thriving feature image

Women That Run eBay and eCommerce Businesses are Thriving

October 21, 2021

/using-the-magento-ecommerce-stage-to-grow-your-ecommerce-business feature image

Using the Magento eCommerce Stage to Grow Your eCommerce Business

Magneto IT Solutions

Magneto IT Solutions

October 21, 2021

Stories Published in 2020

/how-to-launch-a-podcast-a-checklist-by-acast-part-1-1f3b3tna feature image

How to Launch a Podcast: A Checklist by ACAST

October 21, 2020

/3-things-i-learned-building-my-first-neural-network-ef133tar feature image

#NEURAL-NETWORKS

3 Things I Learned Building My First Neural Network

October 21, 2020

/okrs-vs-kpis-whats-the-difference-for-engineering-teams-tz1n3t6f feature image

#SOFTWARE-DEVELOPMENT

OKRs vs. KPIs: What's the Difference for Engineering Teams?

George Guimarães

George Guimarães

October 21, 2020

/how-to-prepare-for-a-coding-interview-in-8-weeks-kno3t11 feature image

#CODING-INTERVIEWS

How to Prepare for a Coding Interview in 8 Weeks

October 21, 2020

/how-to-launch-and-promote-your-podcast-in-three-simple-steps-x01y3tum feature image

#HOW-TO-START-A-PODCAST

How to Start A Podcast with 3 Simple Steps in 2021

October 21, 2020

/how-to-turn-your-skills-into-money-bj1b3tm8 feature image

#ENTREPRENEURSHIP

How To Turn Your Skills Into Money

October 21, 2020

/invert-always-invert-why-a-problem-reversed-is-a-problem-solved-a7f3t97 feature image

Invert, Always Invert: Why a Problem Reversed is a Problem Solved

October 21, 2020

/how-to-deliver-a-mind-blowing-startup-pitch-to-an-investor-qq3f3tj5 feature image

#ENTREPRENEURSHIP

How to Deliver a Mind-Blowing Startup Pitch to an Investor

October 21, 2020

/growing-a-fintech-unicorn-alex-tonellis-anthology-of-lessons-learned-kz4q3typ feature image

Growing a Fintech Unicorn: Alex Tonelli's Anthology of Lessons Learned

October 21, 2020

Stories Published in 2019

/cve-top-offenders-in-2019-p23l32br feature image

#VULNERABILITIES

Common Vulnerabilities and Exposures - Top Offenders in 2019

October 21, 2019

/are-pwas-set-to-replace-native-mobile-apps-gzr32jg feature image

#PROGRESSIVE-WEB-APPS

Are PWAs Set to Replace Native Mobile Apps

October 21, 2019

/dddd-y73433j3 feature image

#MACHINELEARNING

Jeremy Howard’s fast.ai vs Andrew Ng’s deeplearning.ai - Are They That Different From Each Other?

October 21, 2019

/what-should-crypto-investors-be-afraid-of-kro3zq4 feature image

6 Main Fears of a Crypto Investor

October 21, 2019

/interview-with-the-ai-hyr2gme feature image

Making Sense of an Interview with AI [Transcript]

October 21, 2019

/will-the-programmers-of-tomorrow-be-like-the-lawyers-of-today-cdh3zwn feature image

Will the Programmers of Tomorrow Resemble the Lawyers of Today?

Giorgi Mikhelidze

Giorgi Mikhelidze

October 21, 2019

/diving-into-ethereums-virtual-machine-the-future-of-ewasm-wrk32iy feature image

Diving into Ethereum's Virtual Machine(EVM): the future of Ewasm

Timothy McCallum

Timothy McCallum

October 21, 2019

/marketing-for-dummies-how-to-secure-your-ticket-to-hell-5iq3x5t feature image

#MARKETING-TRICKS

Marketing for Dummies - How to secure your ticket to Hell [Deep Dive]

October 21, 2019

/the-best-cbd-capsules-for-sleep-anxiety-pain-and-insomnia-7024g22a0 feature image

How These Companies Are Using CBD Technology To Solve Sleep Relief

October 21, 2019

Stories Published in 2018

/brock-pierces-restart-puerto-rico-cryptolife-a-year-after-hurricane-maria-50cdde11e98e feature image

Brock Pierce’s Restart in Puerto Rico: Cryptolife A Year After Hurricane Maria

October 21, 2018

/universal-basic-income-is-here-like-it-or-not-fab961754ee2 feature image

Universal Basic Income is Here, Like it or Not.

October 21, 2018

/how-to-scrum-for-one-man-operations-e8fc0dc5a58c feature image

How to Scrum for One-Man Operations

October 21, 2018

/should-satoshi-nakamoto-go-to-jail-12ccb679e49d feature image

Should Satoshi Nakamoto Go to Jail?

October 21, 2018

/the-entrepreneurs-the-founders-and-the-tourists-a27448f8a6e9 feature image

The entrepreneurs, the founders, and the tourists

October 21, 2018

/bitcoin-analyzing-events-over-the-last-9-months-1a2cb3d4b900 feature image

Bitcoin: analyzing events over the last 9 months.

October 21, 2018

/youtube-is-making-machines-really-smart-48df30016d5b feature image

#ARTIFICIAL-INTELLIGENCE

YouTube Is Making Machines Really Smart

Oliver Mitchell

Oliver Mitchell

October 21, 2018

/a-tale-of-how-devops-began-35735b15e3e4 feature image

A Tale of How DevOps Began

October 21, 2018

/why-open-source-software-should-invest-in-evangelism-67120a838887 feature image

Why Open Source Software Should Invest in Evangelism

Stanislav Kozlovski

Stanislav Kozlovski

October 21, 2018

Stories Published in 2017

/how-the-ico-market-is-maturing-2186138de0b4 feature image

How the ICO Market is Maturing

October 21, 2017

/kanban-or-toc-which-came-first-3a33554e2f64 feature image

Kanban or TOC, which came first?

October 21, 2017

/so-you-want-to-mine-bitcoin-for-profit-heres-what-you-need-to-know-e801cac034dd feature image

So you want to mine bitcoin for profit? Here’s what you need to know.

October 21, 2017

/fast-ai-what-i-learned-from-lessons-1-3-b10f9958e3ff feature image

#MACHINE-LEARNING

Fast.ai: What I Learned from Lessons 1–3

October 21, 2017

/youtube-to-mp3-using-s3-lambda-elastic-transcoder-df2c5903dea8 feature image

Youtube to MP3 using S3, Lambda & Elastic Transcoder

Mohamed Labouardy

Mohamed Labouardy

October 21, 2017

/continuous-deployment-with-aws-codedeploy-github-d1eb97550b82 feature image

Continuous Deployment with AWS CodeDeploy & Github

Mohamed Labouardy

Mohamed Labouardy

October 21, 2017

/you-dont-understand-the-single-responsibility-principle-abfdd005b137 feature image

#SOFTWARE-DEVELOPMENT

Think you understand the Single Responsibility Principle?

James Ellis-Jones

James Ellis-Jones

October 21, 2017

/the-most-famous-selfies-of-all-time-2480023beb5c feature image

The most famous selfies of all time

October 21, 2017

/sup-with-those-damn-semicolons-in-js-bcd9ebe83eb0 feature image

Sup With Those Damn Semicolons in JS?

October 21, 2017

Stories Published in 2016

/getting-started-with-web-components-and-polymer-2-0-part-1-9142d780d77e feature image

#WEB-COMPONENTS

Getting Started with Web Components and Polymer 2.0 — Part 1

October 21, 2016

/creating-a-messenger-bot-with-express-134e7ec8ea07 feature image

Creating a messenger bot with express

October 21, 2016

/was-today-a-wakeup-call-for-most-probably-not-but-it-could-be-for-you-28575ea07aef feature image

Was Today a Wakeup Call? For Most, Probably Not, but It Could Be for You

Factory of Mirrors

Factory of Mirrors

October 21, 2016

/ddos-10-21-the-cloud-is-not-secure-96e2db25fbad feature image

#DDoS 10/21: The Cloud Is Not Secure

October 21, 2016

/on-the-concept-of-a-side-hustle-f4019f5f3790 feature image

On the Concept of a “Side Hustle”

October 21, 2016

/life-is-gradient-descent-880c60ac1be8 feature image

#MACHINE-LEARNING

Life is gradient descent

Rohan Kshirsagar

Rohan Kshirsagar

October 21, 2016

/explaining-the-ddos-problem-its-origins-as-simply-as-i-can-8a87f7af9ea3 feature image

How the iPhone Led to Today’s Internet Outage

October 21, 2016

/the-missing-piece-in-your-agile-process-start-growing-your-dev-team-today-e7b46b23c7e4 feature image

The missing piece in your Agile process: Start growing your dev team!

October 21, 2016

/today-i-will-kill-my-startup-1ba8a9d6fcab feature image

Today I will kill my startup

Stuart of Vacord

Stuart of Vacord

October 21, 2016

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