· Invasions by Barbaric tribes · Economic troubles and over-reliance on slave labor · The rise of the Eastern Empire · Over-expansion and military overspending · Government corruption and political instability · The arrival of the Huns and the migration of barbarian tribes · Christianity and the loss of traditional values · Weakening of Roman legions
The answer is a On June 26, 1945, delegates from 50 nations, meeting in San Francisco, signed the Charter of the United Nations (UN). This document serves as the constitution of the UN.