_ On Aug. 21, 1888, American inventor and former bank clerk William Seward Burroughs patented the adding machine. Two years earlier, Burroughs had co-founded the American Arithmometer Company to produce and sell the device, but the early models had to be recalled since he was the only person who could actually operate them._ On Aug. 22, 1849, the first-ever air raid took place when Austria launched 200 unpiloted hot-air balloons carrying timed-release bombs against enemy defenses in Venice, Italy. Few casualties resulted, however, due to the unpredictable wind currents._ On Aug. 23, 1990, Chancellor Helmut Kohl decided to prosecute women ...