Historians have found many artifacts such as, dinosaur fossils, hieroglyphics, pyramids, Nazca lines, the gray alien, what is left of the Incas, the calendar from the Mayans, sunken ships, the building from the Aztecs, and much more
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Your answer: A. that only descendants of Muhammad should be caliph Source/Proof: Both sides agreed that Allah is the one true God and that Muhammad was his messenger, but one group (which eventually became the Shiites) felt Muhammad's successor should be someone in his bloodline, while the other (which became the Sunnis) felt a pious individual who would follow the Prophet's customs was acceptable. (Link:https://www.nbcnews.com/news/mideast/what-are-differences-between-sunni-shiite-muslims-n489951)
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Positives: Good soil, plenty of rivers, Gold and other mines.
Negative: Bad climate kills their crops, so they don't make a lot from their trades.
Thats the best I could do.. Sorry
Franz Ferdinand was an Austrian Crown Prince and he was killed in Sarajevo by a Serbian rebel.
Austria demanded of Serbia to allow them to enter Serbia to search for this rebel, which Serbia did not agree on, and Austria declared war on Serbia. In response, Russia declared war on Austria, leading to the war.
They wanted a zone that would defend them from attacks from the East (Germany). They wanted to spread communism and gather more land from themselves.