Which cultural advancement is the Olmec civilization known for? an observatory
a number system
a system of writing
detailed metalwork

Explain in the simplest form what laissez faire is

At the time of hitler's 1939 invasion of poland, the us had a policy of appeasement negotiation opposition neutrality

Kublai khan honored his mongol heritage by: a)marring only one wife b)praying facing mecca five times a day c)slaughtering ten chinese officials every year d)building a large enclosed hunting ground at shangdu,his summer palace