-
August 3, 1492
-
May 14, 1607
-
1754-1763
-
December 16,1773
-
April 19,1775
-
July 4, 1776
-
September 28,1781-October 19,1781
-
May 27, 1787 – Sep 17, 1787
-
July 14, 1798
-
October 28, 1793
-
April 30, 1803
-
Jun 18, 1812 – Mar 23, 1815
-
March 3, 1820
-
October 31,1828-December 2, 1828
-
May 24, 1884
-
1839-1850
-
1837-1843
-
Apr 25, 1846 – Feb 2, 1848
-
January 29, 1850
-
Apr 12, 1861 – Apr 14, 1861
-
Sep 22, 1862 – Jan 1, 1863
-
April 9, 1865
-
April 14, 1865
-
The 13th (1865), 14th (1868), and 15th Amendments (1870) were the first amendments made to the U.S. constitution in 60 years.
-
February 24, 1868
-
Founded 1870-Ceased Operations 1911
-
June 30, 1892-July 6, 1892.
-
April 1898 – August 1898
-
September 14, 1901 – March 4, 1909
-
Electric Light 1879, The invention of the telephone March 10, 1876, The invention of the airplane December 17, 1903