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On This Day in History

April 22

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? is the , landing near Monte Pascoal and claiming it for Portugal

? First military use of poison gas occurs when Germany uses chlorine gas against the Allies at Ypres during World War I

? More than $3.3 million is stolen from the First National Bank of Arizona in Tucson in one of the largest US bank robberies in history

? Nepalese security forces open fire on pro-democracy protesters demonstrating against King Gyanendra, injuring hundreds. The protesters secure the restoration of parliament and a federal state

? Paris Agreement on climate change is signed in New York, binding 195 nations to limit the increase in the global average temperature to less than 2°C above pre-industrial levels and to pursue efforts to limit the increase to 1.5°C

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Richard Nixon became the only US President ever to resign from office, brought down by scandal over the Watergate office break-in and its attempted cover-up.