1 is the correct answer
Hope this helps :D
a stronger central government took place. Measures were also taken to check that power. The first census was taken since Roman periods and a law making legislature was formed.
The last one, trust me every other answer here is so totally wrong.
Paper, allowed documents to be written and stored easier
Wheel, allowed faster transportation and could be used for pottery
Calendar, allowed for organized farming
Answer: It helped create unity and a money economy, and facilitated the spread of ideas and culture.
Trade was an important economic activity in the Islamic world. Islamic merchants traded with faraway places like China, Africa and Europe. Their trade goods consisted of sugar, salt, textiles, spices, slaves, gold and horses.
Their routes followed both land (such as the Silk Road) and sea, and it passed through cities such as Mecca, Medina, Constantinople, Baghdad, Morocco, Cairo and Cordoba.
The expanse of trade contributed to the spread of Islam and Arabic culture.
