Which empires sought to convert all conquered peoples to Islam?

Over a period of a few hundred years, Islam spread from its place of origin in the Arabian Peninsula all the way to modern Spain in the west and northern India in the east.

Islam traveled through these regions in many ways. Sometimes it was carried in great caravans or sea vessels traversing vast trade networks on land and sea, and other times it was transferred through military conquest and the work of missionaries. As Islamic ideas and cultures came into contact with new societies, they were expressed in unique ways and ultimately took on diverse forms.

Explanation:

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1 > george s. boutwell

2 > general ulysses s. grant

3 > james a. garfeild

4 > adolph e. borie