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Great Britain 5/1/1840 First Modern Postage Stamp Issued The first modern postage stamp was issued on May 1, 1840 but was not valid to use until May 6. It was issued in the United Kingdom and features a profile of Queen Victoria and is commonly referred to as a "Penny Black".United States 6/20/1840 Telegraph Patented Samuel Morse patented the telegraph. American President Martin Van Buren (3/4/1837-3/4/1841) British Prime Minister William Lamb (4/18/1835-8/30/1841)