The repeal of the Missouri Compromise was more impactful, according to historian Robert Forbes, than the compromise itself. While it effectively settled the question of slavery from 1820 to 1854, its repeal began the sectarian conflict that eventually brought the nation into the Civil War. Vocabulary.
The first popcorn machine was invented by Charles Cretors of Chicago, Illinois in 1885. In order to test his machine, it was necessary for Charles to operate it on the street as the customer.
Vacuum popping builds on a century and a half of research into why popcorn pops. According to Andrew Smith, the author of Popped Culture: A Social History of Popcorn in America, some scientists thought popcorn owed its pop to the oil in the kernel. Others thought the kernelâs moisture content was the critical factor.