The Treaty of Versailles and the fourteen points were presented as peace making treaties after WW1 and neither were signed by the US
Leonardo da Vinci <em>was famous for his designs, art, cartography, geology, and studies. Leonardo's designs later helped us to invent things like the tank, parachute, helicopter and many other things. He was also a very talented artist. Most of his pictures and paintings are in art galleries and museums. One of his most known paintings is the Mona Lisa. He made many maps of many different places. He was also interested in geology. He studied many different things, including math, reading, and writing backwards. People think he wrote backwards because he didn't want to smear the ink, but others thought he didn't want people to steal his ideas. </em>
Over population is caused many people moving there for business and not enough leaving and or space or job shortage it leads to crowding and shortages
