Known now as a day of patriotism and enjoying time off from work, the Fourth of July began the journey to becoming a quintessential American holiday in 1776, when the Second Continental Congress adopted the Declaration of Independence.

Millions of Americans are expected to hit the road, taking advantage of the Fourth of July falling on a Friday this year.

The US map is covered across each letter of "Google," and the Doodle follows the white, red, and iconic blue color scheme with white stars over it.