Ted Hinton patented the monkey bars inspired by a bamboo grid his father built to teach spatial thinking skills. The Monkey Bars leading role in the “Jungle Gym” would go on to become a staple on playgrounds throughout the United States and around the world.

Warren G. Harding was an American politician who served as the 29th President of the United States from 1921 until his death in 1923. He is known for his efforts to promote business and reduce government regulation, as well as for several scandals that occurred during his administration.

After stowaways on a ship that reached port in San Francisco in 1899 were discovered to have bubonic plague, there would be widespread and multiple outbreaks of the plague in San Francisco.

The Flint Sit-down Strike was a labor strike in 1936-1937 where workers at General Motors’ Flint, Michigan plant occupied the factory to demand better working conditions and recognition of their union. The strike was successful and helped establish the United Auto Workers as a major force in American labor.

Lyndon Baines Johnson was an American politician who served as the 36th President of the United States from 1963 to 1969. He was known for his domestic policies, including the Civil Rights Act and the War on Poverty, as well as his involvement in the Vietnam War.

The Immigration Act of 1924 was a law that restricted immigration to the United States based on nationality and established quotas for each country. It aimed to limit the number of immigrants from Southern and Eastern Europe and Asia.

The Fugitive Slave Act of 1850 was a law that required citizens to assist in the capture and return of runaway slaves. It was highly controversial and contributed to tensions between the North and South leading up to the Civil War.