approximately, 12.
10
some
6
All of them actaully.
No Marco Polo did not find China. He visited China with his dad and his Uncle and he found many great treasures. He just visited there.
Three U.S. presidents have visited Tuskegee University: Theodore Roosevelt, Franklin D. Roosevelt, and George H.W. Bush. Theodore Roosevelt was the first sitting president to visit in 1906, followed by Franklin D. Roosevelt in 1934, and George H.W. Bush in 1990. These visits highlight the university's significance in American history and its role in African American education.
The 9 presidents are: Douglas Hyde Sean T. O'Kelly Eamon De Valera Erskine Childers Cearbhall O Dalaigh Patrick Hillery Mary Robinson Mary McAleese Michael D. Higgins became the 9th president on the 11th of November 2011.
1
All of the US presidents have been men. There have been no female presidents.
Three presidents of the US have visited Ghana up till this year 2010 and they are;1.Bill Clinton 2.George Walker Bush and 3.Barack Hussan Obama.
none
Marco Polo visited China and found inventions such as paper and pasta.