When were the Articles of Confederation approved by the 1st Continental
Congress?

November 15, 1777

there are two main types of historical sources: primary sources and secondary sources. a primary source is something that originates from the past. it can be a chronicle, a piece of pottery, or even a piece of glacial ice that gives us climate data about the levels of atmospheric carbon one thousand years ago.

norsemen from northern countries had made earlier journeys