U.S.A. historical facts of the day

In 1820-1821, commerce between America and Haiti accounted for 4 percent of America’s foreign trade.

“Historians agree that about one in ten slave ships experienced an attempted insurrection during the Atlantic slave trade.”

And:

“Liability for slave ship revolts was one of the maritime perils that underwriters often refused to assume.”

Those are all from Jeffrey R. Kerr-Ritchie’s Rebellious Passage: The Creole Revolt and America’s Coastal Slave Trade.