Explain Regional Integration

Explanation:

The process by which two or more nation-states agree to co-operate and work closely together to achieve peace, stability and wealth. ... This means that the integrating states would actually become a new country

the correct answer is the following is a list of inventions made in the medieval islamic world, especially during the "islamic golden age" (8th to 13th centuries),[1][2] as well as the late medieval period, especially in the emirate of granada and the ottoman empire.

science and technology in the islamic world adopted and preserved knowledge and technologies from contemporary and earlier civilizations, including persia, india, china, and greece-roman antiquity, while making a number of improvements and innovations.

can you explain it better