¿Qué países actuales formaron parte de cada una de las primeras civilizaciones (Egipcia, Mesopotámica, India y China)?

Which is the best example of a primary source ducument useful in the study of history ?

How did slavery end in the united statesa. it ended with the emancipation proclamationb. it ended when the union won the civil warc. it ended with the fifteenth amendmentd. it ended with the 13th amendment

Describe the differences of 89 and x is 47