Here are two documents I’ve read over the past couple of weeks
The Magna Carta, said to be the cornerstone of liberty and the one main document our founding fathers relied on while writing our Constitution.
No Treason, the Constitution of No Authority by Lysander Spooner. Lysander Spooner is quite possibly one of the most interesting characters in American history; and is little known outside anarcho-capitalist circles. One of his most interesting feats was his establishment of a very successful private mail company that engaged in direct competition with the U.S. Postal Service. That is, until the U.S. Government shut him down.
I know this is a long essay but, anyone interested in the history of individualism and freedom in this country should endeavor to read it at least once.