1 the use of a variety of data sources (data triangulation) 2  the use of several different researchers (investigator triangulation) 3  the use of multiple perspectives to interpret the results (theory triangulation)  the use of multiple methods to study a research problem (methodological triangulation)
The Articles of Confederation was the United States' first constitution. Proposed by the Continental Congress in 1777, it was not ratified until 1781.
Articles of Confederation served as the first constitution of the United States. This document officially established the government of the union of the thirteen states. Why were the Articles of Confederation written? The colonies knew they needed some form of official government that united the thirteen colonies. They wanted to have written down rules that all the states agreed to. The Articles allowed the Congress to do things like raise an army, be able to create laws, and print money.