Were did e plur ibusunum come from?

"E Pluribus Unum," meaning "Out of many, one," originated as a motto of the United States and was first proposed in 1776. It reflects the union of the original thirteen colonies into a single nation. The phrase was adopted by the Continental Congress and later appeared on the Great Seal of the United States in 1782. It symbolizes the diverse origins of the American people coming together as one nation.