The Articles of Confederation were developed in 1781 and were established as a first constitution of United States of America. Under these articles, the states remained self-governed and independent. Congress only stepped in as the last resort on appeal
of disputes. The motivation behind the central government lay in wartime urgency. There was a need for foreign acceptance and assistance, and the growth of national feeling.
The Constitution was adopted in 1787 but it was not ratified by all the thirteen colonies until 1790.
The Articles of Confederation propose to pass on power and right of decision to each state and thus emphasizes on the unmoral legislature. The Constitution however proposes that the country should have a dual legislature which means that the country should have all authority in the hands of the federal government. The founding fathers wanted the states to operate together for the country as a whole but at the same time they wanted them to expand and establish themselves as separate entities. But, both the founding documents have a sense to promote independence of the states but also allow them to function together for the mutual protection of the nation.