Discover · History

On this day — February 9

A hand-curated thread of what happened on this date, across centuries.

Observed today

National Pizza Day

Americans eat roughly 350 slices per second on any given day; this is the one where they feel smug about it. Order a pie, argue about pineapple, move on.

🇺🇸🇨🇦

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2025

Milestone

The Baltic states synchronize their electric power transmission infrastructure with the Continental Europe Synchronous Area (CESA), in objective to disconnect from the Russo-Belarussian agreement to use the IPS/UPS system.

2021

Milestone

Second impeachment trial of Donald Trump begins.

2020

Politics

Salvadoran President Nayib Bukele has the army soldiers enter the Legislative Assembly to assist in pushing for the approval for a better government security plan, causing a brief political crisis.

2018

Sport

Winter Olympics

Opening ceremony is performed in Pyeongchang County in South Korea.

2016

Milestone

Two passenger trains collide in the German town of Bad Aibling in the state of Bavaria

Twelve people die and 85 others are injured.

2001

Milestone

The Ehime Maru and USS Greeneville collision takes place

killing nine of the thirty-five people on board the Japanese fishery high-school training ship Ehime Maru, leaving the USS Greeneville (SSN-772) with US $2 million in repairs, at Pearl Harbor.

1996

Disaster