1. on the 1st of Oct, 1949
2. on the 4th of July, 1776
3. on the 14th of july, 1789
4. in 1788 (founded不是founder)
5. in 1867 (founded不是founder)
6. in 1945
1. on the 1st of Oct, 1949
2. on the 4th of July, 1776
3. on the 14th of july, 1789
4. in 1788 (founded不是founder)
5. in 1867 (founded不是founder)
6. in 1945