Both the Mayan and ancient Mesopotamian civilizations excelled in astronomy and mathematics
existed in desert environments
stopped enslaving their enemies
worked to grow maize and beans

The answer would be advertising.

Answer: tokugawa ieyasu (徳川家康, january 31, 1543 – june 1, 1616) was the founder and first shōgun of the tokugawa shogunate of japan, which effectively ruled japan from the battle of sekigahara in 1600 until the meiji restoration in 1868.

Imay be incorrect but i believe the answer is horace mann