Consider yourself a senior scholar and can name the world’s oldest, continuously-operating airline: Koninklijke Luchtvaart Maatschappij voor Nederland en Kolonien. If you can spell and pronounce it, consider yourself a genius.

KLM Royal Dutch Airlines began operations in 1919, just one year after the end of World War I. The first American airline was Delta, which emerged from its crop dusting business to begin hauling passengers in 1924.