On August 18

Two people were fatally stabbed and eight others wounded by a rejected asylum seeker in an Islamist terrorist attack in Turku, Finland.

Pakistani president Pervez Musharraf resigned under pressure from a movement to impeach him.

Hurricane Alicia made landfall near Galveston, Texas, causing $3 billion in damage and 21 fatalities.

Vietnam War: Members of the 6th Battalion of the Royal Australian Regiment were surrounded by a much larger Viet Cong unit at the Battle of Long Tan (helicopter pictured), but held them off for several hours until reinforcements arrived.

East German Communist Party member Hildegard Trabant was killed while attempting to cross the Berlin Wall.

Australia won the fifth Test of the 1948 Ashes series, becoming the first Test cricket team to go undefeated in England, earning them the nickname "The Invincibles".

World War II: Amid a Soviet invasion of Japanese-held Sakhalin, Japanese police massacred 18 Koreans in Kamishisuka.

Second World War: During the Battle of Britain, the Luftwaffe made an all-out effort to destroy RAF Fighter Command, with both sides combined losing more aircraft on this day than at any other point during the campaign.

A lightning strike started the Blackwater Fire (pictured) in Shoshone National Forest, Wyoming, consuming 1,700 acres (7 km2) of old-growth forest and killing 15 firefighters.

The Nineteenth Amendment to the United States Constitution was ratified, guaranteeing women's suffrage in the country.

Russian Civil War: British motor torpedo boats raided the Bolshevik Baltic Fleet's home base of Kronstadt, sinking a depot ship and damaging a battleship.

A hurricane struck the Caribbean island of Martinique, killing about 700 people, injuring at least 1,000 others, and causing severe damage.

American astronomer Asaph Hall discovered Phobos, the larger of Mars's two moons, six days after discovering Deimos, the smaller one.

American Civil War: At the Battle of Globe Tavern, Union forces attempted to sever the Weldon Railroad during the siege of Petersburg.

At least 9,000 enslaved people rebelled in the British colony in Demerara-Essequibo (in present-day Guyana), demanding emancipation.

A meteor procession blazed across the night sky over Great Britain.

The trials of the Pendle and Samlesbury witches (statue pictured), among the most famous of England's witch trials, began at the assizes in Lancaster.

John White, governor of the Roanoke Colony, the first English settlement in North America (located in present-day North Carolina), returned after a three-year absence to find it deserted (depicted).

Reconquista: After a four-month siege, the Catholic Monarchs of Spain conquered the city of Málaga from the Emirate of Granada.

Second Fitna: Umayyad partisans defeated the supporters of Abd Allah ibn al-Zubayr near Damascus, cementing Umayyad control of Syria.