2.5 million
In July 1776, the estimated number of people living in the newly independent nation.
Source: Historical Statistics of the United States: Colonial Times to 1970 <http://www.census.gov/prod/www/abs/statab.html>

304 million
The nation’s population on this July Fourth.
Source: Population clock <http://www.census.gov/main/www/popclock.html>

Have a safe and fun weekend.

Mike