What legendary gospel singer sang just prior to dr. martin luther king jr.'s "i have a dream" speech during the march on washington?

Mahalia Jackson, is the right answer.

Explanation:

It was next to impossible without Mahalia Jackson, that  "I Have a Dream" of Martin Luther King Jr., the speech took place. The Queen of Gospel is the title given to Jackson. She was a vocal legend who served lead gospel from church to a wider population. She became the first singer to win a Grammy in the year 1961. She remained one of the significant figures in the civil rights movement.

salmon were fished in puget sound.

the exodus of these people from constantinople contributed to the revival of greek and roman studies, which led to the development of the renaissance in humanism and science. byzantine emigrants also brought to western europe the better preserved and accumulated knowledge of their own greek civilization