President Ronald Reagan’s landmark speech at the Berlin Wall, urging Soviet leader Mikhail Gorbachev to “tear down this wall.”

The nearly four-month-long attack on Britain by the German Luftwaffe cost the lives of more than 20,000 people and wounded a nearly equal amount.

A writer and revolutionary whose works strongly influenced both the American and French Revolutions. His Common Sense pamphlet was the best-selling and most praised in the colonies.

On May 20th, 1932 a 34-year-old Amelia Earhart landed in a pasture at Culmore, Northern Ireland becoming the first woman to achieve a solo transatlantic flight.

In 1952, London was forced to survive five days of choking smog caused by the excessive burning of coal mixed with unfavorable weather patterns.

With no ambitions of space, Valentina Tereshkova was recruited in the first female soviet cosmonaut program. On June 16, 1963 she became the first woman in space.

The age of enlightenment spanned the 17th and 19th centuries with Descartes, Voltaire, Rousseau and other thinker-philosophers contributed amazing ideas that changed the world.