I think its
1) Abandoning a steady paycheck
2) Sacrificing personal capital
3) Relying on cash flow
4) Estimating popular intrest
5) Trusting a key employee
6) Betting on a crucial deadline
7) Donating personal time (and health)
With trade and this helped spread Islam
The Arabic language is used in different dialects from Morocco to Iraq. Among Muslims it is considered a sacred language, as it was through it that the Quran was revealed. From 622 AD, the year of the Hijrah (when Muhammad fled Mecca and took refuge in Medina, marking the beginning of the Muslim calendar), Arabic became the most widespread living language within the trunk of the Semitic languages. About 150 million people now consider it their mother tongue.
Answer:
Aqueducts
Explanation:
Aqueducts became one of the key features of Rome. This city alone had over 480 miles of aqueducts, about 29 of which were above ground, and brought in 300 million gallons of water per day. When Rome became an empire and spread across Europe, the Romans introduced aqueducts into their new colonies.
