FALSE

The claim that the Ku Klux Klan was declared unconstitutional in 1871 is factually incorrect. On April 20, 1871, President Ulysses S. Grant signed the Ku Klux Klan Act, which was federal legislation designed to enforce the Provisions of the Fourteenth Amendment 1 4. This law, also known as the Civil Rights Act of 1871, empowered the federal government to use military force and declare martial law to suppress the group's activities 5 12. Rather than the organization being declared unconstitutional, the Act provided the legal authority for the Ku Klux Klan Trials of 1871-1872, which led to the suppression of the first wave 8. While the first Klan was largely dismantled by the early 1870s due to these enforcement efforts, no provided source confirms that the group was disbanded by 1878 14 16. Furthermore, the term unconstitutional typically applies to laws or government actions rather than private organizations 2 6 13.