The use of poison gasesâ€”ranging from disabling chemicals like tear gas and mustard gas to lethal agents like phosgeneâ€”was a military innovation put into use during WWI that had a major impact on warfare. Although the killing capacity of gas was limitedâ€”only 4% of combat deaths were due to gasâ€”the proportion of non-fatal casualties was high, and gas remained one of the soldiers' greatest fears. What were some of the early, crude countermeasures developed to defend against the use of poison gases?
Back in the day
Ride is a former astronaut and the first American woman to reach outer space. She was a nationally-ranked tennis player in high school before attending Stanford University for her bachelor's, master's, and doctoral degrees. In 1983, she took part in her first space shuttle mission, serving as a crewmember on board the Challenger. Ride later served on the panels that investigated the Challenger and Columbia shuttle disasters. How many total hours has she spent in space?
Born on a day like today
Born in Manassa, Colorado, Dempsey was an American boxer and one of the heavyweight division's greatest champions. Nicknamed the "Manassa Mauler," he emerged from fights on saloon floors to seal his slugging reputation in his first title fight by knocking down the gigantic champion, Jess Willard, seven times in the first three minutes. Dempsey went on to fight for nearly 20 years and amassed more than 60 wins and 50 knockouts. What was the "Battle of the Long Count"?