What was happening in the rest of the world during the Sumerian period in Mesopotamia and Egypt?

What is the deadliest* month in human history?

Did the Mongol invasion of Poland lead to diplomatic relations with England?

Did 50000 Jews really gather in Moscow in 1948 to see Golda Meir?

How did one "look up" an answer before the internet?

do you guys think there is a problem in african studies?

Trading options in the 1600s was well utilized during the Tulip Bubble and trading the Dutch East Indies stock. Do we know how they set prices without knowing volatility/time decay etc, bell curve distributions or Black Scholes modeling? Was their option pricing very inaccurate vs today’s models?