Permanent historical records ยท Updated 2026-11-03

2021 in United States of America

Explore 49 historical events and records for United States of America in 2021.

Historical records for United States of America in 2021

Sorted by month and day. Records with no month are shown last. Showing 40 of 49 unique records.

49Unique records
1 of 2Page
35Named events on this page
16Named people on this page
12Places on this page

January

January 6 Rally Speech

Trump, Donald ยท Washington DC ยท Government / Republican Party Government

Addresses supporters before the Capitol is stormed.

Juno Mission Extension

Bolton, Scott ยท Washington ยท Principal Investigator ยท Science / Astronomy

NASA extends Juno through 2025 and adds close exploration of Jupiter's rings and Galilean moons.

Social Media Suspensions

Trump, Donald ยท Washington DC ยท Government / Republican Party Government

Faces suspension from major social media platforms.

Second Impeachment Article Passed

Trump, Donald ยท Washington DC ยท Government / Republican Party Government

House passes article of impeachment for incitement of insurrection.

Federal Mask Order

Biden, Joseph Robinette ยท Washington ยท Government / Democratic Party Government

Signs a federal mask requirement for federal property.

Final Day in Office

Trump, Donald ยท Washington DC ยท Government / Republican Party Government

Leaves office as Joe Biden is inaugurated.

Paris Agreement Rejoining

Biden, Joseph Robinette ยท Washington ยท Government / Democratic Party Government

Orders the United States to rejoin the Paris Agreement.

President of USA

Biden, Joseph Robinette ยท Washington ยท Government / Democratic Party Government

Is inaugurated as the 46th President of the United States.

Vaccine Distribution Plan

Biden, Joseph Robinette ยท Washington ยท Government / Democratic Party Government

Launches a national COVID-19 strategy.

February

New START Extended Five Years

Biden, Joseph Robinette ยท Washington ยท President of USA ยท Government / Nuclear Arms Control

The United States and Russia agree to extend New START for five years through February 2026.

Second Impeachment Trial

Trump, Donald ยท Washington DC ยท Government / Republican Party Government

Faces second impeachment trial in the Senate.

Second Impeachment Acquittal

Trump, Donald ยท Washington DC ยท Government / Republican Party Government

Is acquitted in his second impeachment trial.

March

American Rescue Plan

Biden, Joseph Robinette ยท Washington ยท President of USA ยท Economy / Pandemic Economy

The Act funds household payments, unemployment benefits, vaccination and state and local governments.

American Rescue Plan

Biden, Joseph Robinette ยท Washington ยท Government / Democratic Party Government

Signs the American Rescue Plan Act.

April

Afghanistan Withdrawal Decision

Biden, Joseph Robinette ยท Washington ยท Warfare / Afghanistan War

Announces U.S. troops will leave Afghanistan.

Parker Crosses Alfven Critical Surface

Kasper, Justin ยท Solar Corona ยท Principal Investigator ยท Science / Astronomy

Leads analysis showing that Parker Solar Probe crosses the Alfvรฉn critical surface and directly samples solar-wind plasma while inside the Sun's outer atmosphere.

May

DESI Main Survey Starts

Levi, Michael ยท Dark Energy Spectroscopic Instrument ยท Physicist ยท Science / Astronomy

Levi directs DESI as its five-year main survey begins mapping millions of galaxies and quasars to track the effect of dark energy across cosmic history.

June

DAVINCI Mission Selection

Garvin, James ยท Science / Astronomy

NASA selects DAVINCI to investigate Venus's atmosphere and composition using a descent probe and remote observations.

VERITAS Mission Selection

Smrekar, Suzanne ยท Science / Astronomy

NASA selects VERITAS to map Venus at high resolution and investigate the planet's geology, tectonics and interior.

Ganymede Flyby

Bolton, Scott ยท Ganymede ยท Principal Investigator ยท Science / Astronomy

Juno makes a close flyby of Ganymede.

Juno Ganymede Flyby

Bolton, Scott ยท Ganymede ยท Principal Investigator ยท Science / Astronomy

Juno makes the closest spacecraft pass of Ganymede since Galileo and changes its orbital period.

First NATO Summit

Biden, Joseph Robinette ยท Brussels ยท Government / Democratic Party Government

Attends his first NATO summit as president.

Geneva Putin Summit

Biden, Joseph Robinette ยท Geneva ยท Government / Democratic Party Government

Meets Vladimir Putin at a Geneva summit.

Juneteenth Federal Holiday

Biden, Joseph Robinette ยท Washington ยท Government / Democratic Party Government

Signs legislation making Juneteenth a federal holiday.

July

Death

Weinberg, Steven ยท Austin ยท Science / Physics

Dies in Austin after a career that reshaped particle physics, quantum field theory and modern cosmology.

August

Fall of Kabul Response

Biden, Joseph Robinette ยท Washington ยท Warfare / Afghanistan War

Defends withdrawal as the Taliban retakes Kabul.

Afghanistan Withdrawal Completed

Biden, Joseph Robinette ยท Washington ยท Warfare / Afghanistan War

U.S. military withdrawal from Afghanistan is completed.

September

Vaccine Mandate Plan

Biden, Joseph Robinette ยท Washington ยท Government / Democratic Party Government

Announces vaccine requirements for federal workers.

AUKUS Announcement

Biden, Joseph Robinette ยท Washington ยท Government / Democratic Party Government

Announces the AUKUS security partnership.

October

Rock and Roll Hall of Fame

Bartos, Karl ยท Cleveland ยท Rock and Roll Hall of Fame ยท Arts / Popular Music

Is inducted into the Rock and Roll Hall of Fame with Kraftwerk.

Rock and Roll Hall of Fame

Flur, Wolfgang ยท Cleveland ยท Rock and Roll Hall of Fame ยท Arts / Popular Music

Is inducted into the Rock and Roll Hall of Fame with Kraftwerk

Rock and Roll Hall of Fame

Hutter, Ralf ยท Cleveland ยท Rock and Roll Hall of Fame ยท Arts / Popular Music

Is inducted into the Rock and Roll Hall of Fame with Kraftwerk for musical influence.

Rock and Roll Hall of Fame

Schneider, Florian ยท Cleveland ยท Rock and Roll Hall of Fame ยท Arts / Popular Music

Is posthumously inducted into the Rock and Roll Hall of Fame with Kraftwerk.

Great Red Spot Depth Measurement

Bolton, Scott ยท Jupiter ยท Principal Investigator ยท Science / Astronomy

Juno data show the Great Red Spot extends hundreds of kilometres below Jupiter's cloud tops.

November

Infrastructure Investment and Jobs Act

Biden, Joseph Robinette ยท Washington ยท Government / Democratic Party Government

Signs the bipartisan infrastructure law.

December

Summit for Democracy

Biden, Joseph Robinette ยท Washington ยท Government / Democratic Party Government

Hosts the first Summit for Democracy.

Nobel Prize in Medicine

Julius, David ยท Stockholm ยท Physiologist ยท Science / Medicine

Shares the medicine prize for discoveries of receptors involved in temperature and touch.

Nobel Prize in Medicine

Patapoutian, Ardem ยท Stockholm ยท Neuroscientist ยท Science / Medicine

Shares the medicine prize for discoveries of receptors involved in temperature and touch.

Other events (month unknown)

Academy Award

McDormand, Frances ยท Actress and Producer ยท Arts / Cinema

Wins Best Actress for Nomadland and shares its Best Picture award as a producer.

Cry Macho

Eastwood, Clinton "Clint" ยท Hollywood ยท Actor and Director ยท Arts / Cinema

Directs and stars in Cry Macho, a late-career western road drama.

How these records were prepared

Generated from the World History Database historical_events table. Identical display records are collapsed; descriptions otherwise retain the stored text. Coverage and source quality vary. Check primary and specialist sources before citing individual historical claims.