| March 29th, 1806Construction is authorized of the Great National Pike, better known as the Cumberland Road, becoming the first United States federal highway. event on March 29, 1806.  Read about how to open files in Open File Database.
 Events around March 29, 1806
| March 29th, 1806 | Event | Construction is authorized of the Great National Pike, better known as the Cumberland Road, becoming the first United States federal highway. |  |