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 to the Constitution? How Many Amendments to the Constitution? As of February of 2011, 27 Constitutional Amendments currently exist; the first Amendment to the Constitution was adopted on September 25th, 1789 â the most recent Amendment to the Constitution was adopted on May 5th â 7th of 1992.