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A poster supporting the Anti-Rent Movement, aimed to end the patroon system in Rensselaer County, New York, United States. Its headline reads "ATTENTION! ANTI-RENTERS! AWAKE! AROUSE!" [Wikipedia]
Anti-Rent Movement Begins (1839)July 4th, 1839

On this day in 1839, tenant farmers on New York's oldest estate assembled in Albany County to adopt a declaration of independence from their landlord, initiating the longest rent strike in U.S. history, the "Anti-Rent War".

Image: A poster supporting the Anti-Rent Movement, aimed to end the patroon system in Rensselaer County, New York, United States. Its headline reads "ATTENTION! ANTI-RENTERS! AWAKE! AROUSE!" [Wikipedia]

An artist's depiction of immigrants arriving in New York City, undergoing health inspection in 1866
Immigration Act of 1864July 4th, 1864

Passed on this day in 1864, the Immigration Act legalized wage-based indentured servitude to encourage immigration to the United States, allowing immigrants to forgo a year's wages to pay for their passage into the country.

Image: An artist's depiction of immigrants arriving in New York City, undergoing health inspection in 1866

Operation PBHistory (1954)July 4th, 1954

Operation PBHistory was a covert CIA operation that began on this day in 1954, following their ousting of Guatemalan President Jacobo Árbenz, seeking to damage his reputation, disseminate propaganda, and spy on Latin American communists.