20 Feb 1792—20 Feb 1792: United States Post Office established
2 Apr 1792—2 Apr 1792: United States Mint established
8 May 1792—8 May 1792: United States Military Draft established
3
1797
4 Mar 1797—4 Mar 1801: Adams/Jefferson admin
4
1801
4 Mar 1801—4 Mar 1809: Jefferson/Burr and Clinton admin
5
1803
30 Apr 1803—30 Apr 1803: Louisiana Purchase (Arkansas, part of Colorado, Iowa, Louisiana, part of Minnesota, Missouri, part of Montana, part of North Dakota, part of Oklahoma, South Dakota and part of Wyoming