Lynching was made a federal crime in December, 2018. Why did it take so long to get this law passed?

The Dyer Anti-Lynching Bill was re-introduced in subsequent sessions of Congress and passed by the U.S. House of Representatives on January 26, 1922, but its passage was halted in the Senate by a filibuster by Southern Democrats, who formed a powerful block that exceeded their percentage of the population

12 days because 1/4 is 25% of 100 if 100 is equal to 1 pound then multiply 3 by 4 which equals 12

Every statement this is because of the same law