Extremely few.
There is always an odd case or two, somewhere.
Probably most were actually black slaves, odds are a few would have professed Islam of some sort. These people were traded long distances across that continent.
Extremely few, and what is of most relevance, making no appreciable contribution to the creation and development of this great country. Liberals are trying to propound this huge LIE that Muslims have been IMPORTANT to this country from the beginning, and that is simply b.s.
The main aspect of Muslim interactions with the USA before recent decades was all the piracy and enslavement practiced by the “Barbary Pirates” in the late 18th/early 19th centuries.
I graduated high school in 1964. We had a Muslim girl for
an exchange student that year. I had never heard the word
“Moslem” nor did I know a thing about it. She was a nice
girl, at least outwardly; but she had a real problem in our
school just finding something she could eat at lunch. The
cafeteria did not quit serving hot dogs,a mainstay.
I hope that Mine’ found Christ. She went back to Turkey &
married a Muslim guy her parents chose for her. She died
several years ago.