Battles over succession (C) contributed to the fall of Songhai. Al-mansur in 1590 took advantage of the recent civil strife in Songali and sent army to conquer soghai and also to control trans saharan trade route. After the the Songai was defeated the empire collapsed.
A. or "Was greater in the 1970's and '80s, than they are today."
The Treaty of Versailles, which effectively ended World War I, required Germany to "pay reparations"--which were very harsh and actually led to the outbreak of World War II.
During the neolithic era, the shift from hunting and gathering to agriculture brought about the creation of settlements that converted small nomadic groups of hunters into non-nomadic people living in villages. Observation and experimentation with plants led to the cultivation of specialized types of food crops.
The Clayton Antitrust Act of 1914 benefitted labor by restricting the use of order against labor. It also made it legal to peacefully protest by striking, picketing, and boycotting.<span />