Tyler, TX (KETK) — September 17th marks the 225th anniversary of a big moment in U.S.. history, the signing of the Constitution, and across the country, colleges and universities celebrated by providing public lectures and presentations for their students

The Constitution are the laws by which we live by here in the U.S.., and in Monday's presentation at UT Tyler, students heard about some unsung heroes, who fought so that these laws could become a reality.

Those unsung heroes were the African Americans who were forced to fight for either the U.S.. or the British.

Dr. Alan Gilbert from the University of Denver was the lecturer for the day, and in his new book he mentions that one German soldier, who was fighting for the Americans, noticed that most of the dead bodies on the field at the Battle of Yorktown were black.

It's stories like these that give us more of an insight on how this country was founded, and just how precious that document truly is.

For more click on the video above.