What was the major cause of african americans migration to urban cities during world war 1

The 20th amendment, also called the lame duck amendment, decreased the amount of time between the presidential election and the inaugration of the new president. what are the advancements that allowed for this amendment?

What is human effort in human effort economics

1.3.6 practice: examining the founding principles the declaration of independence we hold these truths to be self- evident, that all men are created equal. that they are endowed by their creator with certain unalienable rights, that among these are life, liberty, and the pursuit of happiness.- that to secure these rights, governments are instituted among men, deriving their just powers from the consent of the governed,- that whenever any form of governments becomes destructive of thee ends, it is right of the people to alter or to abolish it, and to institute new government, laying its foundation on such principles and organizing its power in such form, as to them shall seem most likely to effect their safety and happiness . summary