The USS Shenandoah was the first American-built rigid dirigible. Its design was based on a German zeppelin downed during WWI, and it was the first ship to be filled with helium—making it safer than hydrogen-filled crafts. A year after its maiden voyage, it became the first rigid airship to cross North America. While on another tour in 1925, it passed through a storm and was torn apart. Thirteen crew members died in the crash. How did those who survived the disaster manage to do so? Discuss

Campbell, an English automobile and speedboat racer, set many speed records for motorcycles, airplanes, automobiles, and motorboats. In 1931, he was knighted for his accomplishments. Four years later, driving his famed automobile Bluebird at Bonneville Flats, Utah, Campbell set his final land speed record, becoming the first person to drive an automobile faster than 300 mph (483 km/h). He later turned to speedboat racing and set a new record in 1939, when his boat reached what speed?

After an abortive insurrection in June 1792, French revolutionaries followed it with a decisive one in August. Under pressure from the insurrection, the Assembly suspended Louis XVI and ordered elections for a National Convention to draw up a new constitution. Mass arrests of royalist sympathizers were followed by the September massacres, in which frenzied mobs entered jails throughout Paris and killed approximately 2,000 prisoners, many in grisly fashion. Who was targeted during the massacres?