Which part of the constitution establishes the legislative to branch of the government? amendment 1 amendment 11 article 1 bill of rights

Amendment 1. It's the longest Article in the Constitution. It is so long due to the failure of the Articles of Confederation along with the fear of having an overpowering legislative branch similar to Parliament that they had recently fought and defeated. 

The  pan-african movement  was an "emotional, cultural, psychological and ideological  movement  that began among the  african  dispora in the western hemisphere, for a closer  purpose, so that  african  people could feel secure, attain political, economic as well as psychological power visa vis other races or world regions" .