अमेरिका ने 2 जुलाई को अपनी स्वतंत्रता की घोषणा की, लेकिन यह 4 जुलाई को क्यों मनाया जाता है?

Although the Continental Congress voted for independence on July 2, 1776, July 4 became America's official Independence Day. Here's why the two dates continue to spark historical debate.