Thursday is Flag Day, marking the date in 1777 when Congress adopted the Stars and Stripes. Some facts about the U.S. flag:

— Betsy Ross, often credited with sewing the nation’s first flag, apprenticed not as a seamstress but as an upholsterer, learning to make and repair curtains, bedcovers, tablecloths, rugs, umbrellas and Venetian blinds.

— The national anthem, “The Star-Spangled Banner,” is based on a 15-star, 15-stripe flag sewn by Mary Pickersgill for Fort McHenry in Baltimore. Vermont and Kentucky had recently been added to the original 13 states.

— The U.S. flag has been modified 26 times since its adoption in 1777. Today’s 50-star flag, created in 1960, has been in use the longest.

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