The main reason why so many African Americans migrated to cities during World War II was because "<span>D. There were many job opportunities in urban factories."</span>
<h2>Manuel José Arce
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The leader in the movement against Mexican rule was Colonel Manuel José Arce of El Salvador. His flag of blue-white-blue horizontal stripes was given a blessing in the church of San Salvador on February 20, 1822, and eventually became the national flag of the United Provinces of Central America.
It was 3,929,214 once the Constitution went into affect
