1776-Thomas Paine publishes his first "American Crisis" essay beginning "These are the times that try men's souls" (date disputed) 1783 -William Pitt the Younger becomes the youngest ever British Prime Minister at age 24 1932-British Broadcasting Corporation (BBC) begins transmitting overseas 1946-War breaks out in Indochina as Ho Chi Minh attacks French in Hanoi 1950-Chinese invasion of Tibet forces the Tibetan spiritual leader the Dalai Lama to flee Lhasa for Yadong on the Tibetan-India border 1958-First radio broadcast from space, US President Dwight D. Eisenhower sends a Christmas message "to all mankind, America's wish for peace on Earth and goodwill to men everywhere" 1981-Romuald Spasowski, Polish ambassador to the United States defects to show support for the Solidarity movement amid a crackdown 1984-Chinese Premier Zhao Ziyang and British Prime Minister Margaret Thatcher sign the Sino-British Joint Declaration to transfer Hong Kong back to China in 1997 1998-U.S. House of Representatives votes to impeach President Bill Clinton over the Lewinsky scandal, forwarding the articles of im