If you mean what day of the week did July begin, the 1st of July 2013 was a Monday.
20th of July 1934
23rd of July
July starts on a different day of the week every year. In 2012, it started on a Sunday.
july 28 is the day celebrated
27th july 2012
July 4, 1776
June 21st
July 27, 2012
July 1, 1867.
July 27 2012 is the official start
SUnday 30th july 2012