Why did the promise of a bill of rights convince many delegates at state ratification conventions to vote in favor of the constitution?

Because Their individual rights and liberties would be protected.
The bill of rights consists of several amendments that guarantee basic liberties for all citizens in united states, such as the right to live, the right of speech, the right to pursue happiness, etc.
In people's perspective, these basic liberties will protect us from a tyrannical government.

To solve their problems, mesopotamians used irrigation, a way of supplying water to an area of land. to irrigate their land, they dug out large storafe basins to hold water supplies these ditches brought water to the feilds. to protect their feilds from flooding, farmers built up the banks of the tigris and euphrates.hope ths !