PU synthetic leather (also known as bi-cast leather, bycast leather or artificial leather, sometimes described as split leather) is a material made with asplit leather backing covered with a layer of polyurethane (hence the term PU leather) that is applied to the surface and then embossed.
Constitution Daily. How a C-grade college term paper led to a constitutional amendment. The 27th Amendment is the most recent amendment to the Constitution, and its existence today can be traced to a college student who proposed the idea in a term paper and was given a C by his professor for the idea.
How Many Amendments Are to the Constitution. Aug 31, 2011 The original Constitution1 of the United States of America was approved on September 17, 1787. It happened in Philadelphia, Pennsylvania, at the Federal Convention. Since then 27 changes, which are usually called âamendmentsâ2 have been made to the U.S. Constitution. James Madison, the fourth President of the United States, proposed the first ten amendments. They constituted the Bill of Rights3. These amendments were ratified in 1791.