Epidemiologic Reviews, 20(1): 71-80. Data collection is the process of gathering and measuring information on variables of interest, in an established systematic fashion that enables one to answer stated research questions, test hypotheses, and evaluate outcomes.pidemiologic Reviews, 20(1): 71-80. Data collection is the process of gathering and measuring information on variables of interest, in an established systematic fashion that enables one to answer stated research questions, test hypotheses, and evaluate outcomes.
It succeeded the First Continental Congress, which met between September 5, 1774 and October 26, 1774, also in Philadelphia. The second Congress managed the colonial war effort, and moved incrementally towards independence, adopting the United States Declaration of Independence on July 4, 1776.
Bonfires and Illuminations. On July 8, 1776, the first public readings of the Declaration were held in Philadelphia's Independence Square to the ringing of bells and band music. One year later, on July 4, 1777, Philadelphia marked Independence Day by adjourning Congress and celebrating with bonfires, bells and fireworks.