On May 19

The wedding of Prince Harry and Meghan Markle (both pictured) took place at St George's Chapel in Windsor Castle, England.

A corroded pipeline near Refugio State Beach, California, spilled 142,800 gallons (3,400 barrels) of crude oil onto the Gaviota Coast.

In Bangkok, the Thai military (pictured) concluded a week-long crackdown on widespread protests by forcing the surrender of opposition leaders.

The Sierra Gorda Biosphere, which encompasses the most ecologically diverse region in Mexico, was established as a result of grassroots efforts.

Breakup of Yugoslavia: With the local Serb population boycotting the referendum, Croatians voted in favour of independence from Yugoslavia.

First World War: Australian and New Zealand troops repelled the third attack on Anzac Cove, inflicting heavy casualties on the attacking Ottoman forces.

Parks Canada, the world's first national park service, was established as the Dominion Parks Branch under the Department of the Interior.

Captain John Franklin (pictured) departed Greenhithe, England, on an expedition to the Canadian Arctic in search of the Northwest Passage; all 129 men were later lost when their ships became icebound in Victoria Strait.

The United States Congress passed the largest tariff in the nation's history, which resulted in severe economic hardship in the American South.

A combination of thick smoke, fog, and heavy cloud cover caused darkness to fall on parts of Canada and the New England area of the United States by noon.

American Revolutionary War: A Continental Army garrison west of Montreal surrendered to British troops at the Battle of the Cedars.

French physicist Jean-Pierre Christin published the design of a mercury thermometer using the centigrade scale, with 0 representing the melting point of water and 100 its boiling point.

Anglo-Spanish War: England invaded Spanish Jamaica, capturing it a week later.

Gregory II began his pontificate; his conflict with Byzantine emperor Leo III eventually led to the establishment of the temporal power of the pope.