Islam gained momentum during the 10th century in West Africa with the start of the Almoravid dynasty movement on the Senegal River and as rulers and kings embraced Islam. Islam then spread slowly in much of the continent through trade and preaching.
It began in the 1880s but started in the United States and England around 1920s
<span>Peacetime differs from wartime production. The two groups that cooperated with government to switch to wartime production must have saw the need to do so. However, without sufficient information, I don't know which are the two groups. However, these groups probably saw that things were heated.</span>
