Who was an architect from South Carolina who is well known for designing the
Washington Monument in Washington DC, and the Ainsley Hall Mansion in Columbia?

Robert Mills

Explanation:

Robert Mills (1721-1855) was a known architect born in South Carolina acknowledge for erecting the first monument in Washington which was found in Baltimore off Maryland.

Mills designs also includes the courthouse, lands-ford canals in Chester, the department of treasury building

answer: what was the us involvement in ww1? although the u.s. tried to remain neutral when ww1 broke out, it finally joined on april 6, 1917 after declaring war on germany. the reason for america to become involved in ww1 was germany's unrestricted submarine warfare, which had already sunk several american merchant ships.

explanation:

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