National Cigar Day, also known as National Smoke a Cigar Day, is observed worldwide every February 27. This holiday commemorates Oscar Hammerstein I's patents for the cigar-making process, which facilitated mass production in the United States. Cigar smoking has its origins in the Americas, where tobacco is native, and was first encountered by European explorers in the late 15th century among the Taíno people of Cuba. By the late 18th century, cigar smoking became widespread, transitioning from hand-rolled cigars to machine production following Hammerstein's innovations in the late 19th century. Celebrations include smoking cigars alone or with others, learning about the history of cigars, trying new varieties, and sharing experiences on social media using the hashtag #NationalCigarDay.