Explain some ways in which the world is more at risk now?

Explanation: In the United States before 1865, a slave state was a state in which the slave trade was legal, while a free state was one in which it was not. There were enslaved persons in most free states in the 1840 census, and the Fugitive Slave Act of 1850 specifically stated that an enslaved person remained enslaved even if their owner took them to a free state.Historically, in the 18th century, slavery existed in all the British colonies of North America. In 1776, slavery was legal throughout the Thirteen Colonies, when colonies started to abolish the legality of the practice. Pennsylvania abolished slavery in 1780, and about half the states abolished slavery during the Revolutionary War or in the first decades of the new country.