What were the achievements of the ottomans mongols and ming dynasty?

Ottomans Mongol ruled between 1299 and 1922, they are known to rule over the most powerful state in the world of Islam. The founder of the Mongol Empire is Gengis Khan. Here are some of their well-known achievements:

-Strengthened government during the reign of military leader Suleiman

-Based in Islam, improved system of justice/law

-Lastly, they conquered new territory for the Ottoman Empire

Ming Dynasty, which lasted for 300 years, is a well-known era in China they had great contributions in culture, science and even technology. Ming Emperor Zhu Yuanzhang reformed the military and political systems. Here are their greatest achievements:

-The Great Wall of China was built during the Ming dynasty

-Paper and printing were also invested during this era

-Also, bristle toothbrush were also first used during this era.

while it was true that the cotton gin reduced the labor of removing seeds, it did not reduce the need for slaves to grow and pick the cotton.

explanation:

before eli whitney's invention of the cotton gin, picking and cleaning cotton was a slow, labor-intensive job. workers, usually slaves, had to pick the seeds from the cotton fibers by hand. this invention made it possible to grow large amounts of cotton on big farms and make money.

protected civil liberties and outlawed slavery in the new territories.