When it was collapsed in 1989
Christopher Columbus was a Spanish navigator who proposed to sail across the Atlantic to get to India for trade, accidentally discovering the Americas. He did a number of things to the indigenous peoples. He traded with them, he enslaved some, and he also mistook them for East Indians.
Freed slaves or the enslaved negroes/black farmers migrated to western territories because the west was new and the United States Agrarian Reform had promised them a free land which is forty (40) acres and a mule under the Homestead Act of 1862.
some of the countries that use the federal system are...
United states
Mexico
Germany
Canada
Australia
and Brazil