Correct answer: 1. first Roman emperor to convert to Christianity and 2. moved the capital to present day Istanbul
Explanation: Constantine was a lauded Emperor and general who converted to Christianity on his deathbed and who moved the imperial palace to present day Istanbul (named Constantinople for years)
He intended to discover the patterns and principles of the development of human history
The Nile river is the correct river. The Nile River is the longest in the world. Hope this helps :)
The person you're looking for is Ida Bell Wells-Barnett :)