The Sumerians created many new developments in math, science and astronomy. Which of the following is NOT a development of the Sumerians? A: Created a system of weights and measures.
B: Developed the first known system of writing.
C: Discovered the moon revolved around the Earth.
D: Developed a 12-month calendar based on moon cycles.

Read the opening line from a draft of an informative essay. which is the best revision of the sentence? trade between great britain and japan expanded as opium deals between the nations increased in the early 1800s. britain greatly expanded trade with china, increasing its opium exports more than five times in the early 1800s. britain’s expanded trade in opium led to export increases that were five times greater in the early 1800s. britain greatly expanded trade with china, which increased its opium exports more than five times in the early 1800s.

When did paul zoll develop cardiac pacemaker

Since the 700 what was the relationship between muslims and christians on the iberian peninsula? how does this relationship impact the desire of christiannations in the iberian peninsula to spread christanity?