◆ On this day

April 22

4 sourced moments from April 22 in history: Cabral reached Brazil in 1500, but Pinzón likely got there first; How a Civil War prayer put "In God We Trust" on American coins (1864); Chemical weapons saw their first large-scale use at the Second Battle of Ypres (1915), plus 1 more.

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4 things happened on April 22

newest first ↓

1970 Earth & Climate · Ecosystems

The first Earth Day was observed across the United States

On April 22, 1970, some 20 million Americans took to streets and campuses, turning scattered environmental anger into a national movement.

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1915 History · War & Conflict

Chemical weapons saw their first large-scale use at the Second Battle of Ypres

On April 22, 1915, German forces opened canisters of chlorine gas at Ypres, introducing industrial-scale chemical warfare.

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1864 Society & Economy · Politics & Law

How a Civil War prayer put "In God We Trust" on American coins

A wartime plea to stamp faith onto money pushed Congress to act, and one humble coin carried the words first.

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1500 History · Modern

Cabral reached Brazil in 1500, but Pinzón likely got there first

Cabral's fleet sighted Brazil on April 22, 1500 — months after Spanish captains — yet the Treaty of Tordesillas made his landfall the one that counted.

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