Andrew Carnegie, Scottish-American businessman and philanthropist, founded the Carnegie Steel Company and Carnegie Hall (born 1835)

Andrew Carnegie was a Scottish-American industrialist and philanthropist. Carnegie led the expansion of the American steel industry in the late-19th century and became one of the richest Americans in history.

Carnegie Steel Company was a steel-producing company primarily created by Andrew Carnegie and several close associates to manage businesses at steel mills in the Pittsburgh, Pennsylvania area in the late 19th century. The company was formed in 1892, and was subsequently sold in 1901 in one of the largest business transactions of the early 20th century, to become a major component of U.S. Steel. The sale made Carnegie one of the richest Americans in history.

Carnegie Hall is a concert venue in Midtown Manhattan, New York City. It is at 881 Seventh Avenue, occupying the east side of Seventh Avenue between 56th and 57th Streets. Designed by architect William Burnet Tuthill and built by its namesake, industrialist and philanthropist Andrew Carnegie, it is one of the most prestigious venues in the world for both classical music and popular music. Carnegie Hall has its own artistic programming, development, and marketing departments and presents about 250 performances each season. It is also rented out to performing groups.

August 11 is the 223rd day of the year in the Gregorian calendar; 142 days remain until the end of the year.