1903 (MCMIII) was a common year starting on Thursday (link will display calendar) of the Gregorian calendar and a common year starting on Wednesday of the 13-day slower Julian calendar.

Charles Lutwidge Dodgson ( /ˈtʃɑrlz ˈlʌtwɪdʒ ˈdɒdʒsən/ CHARLZ LUDT-wij DOJ-sən; 27 January 1832 – 14 January 1898), better known by the pseudonym Lewis Carroll (/ˈkærəl/ KARR-əl), was an English author, mathematician, logician, Anglican deacon and photographer. His most famous writings are Alice's Adventures in Wonderland and its sequel Through the Looking-Glass, as well as the poems "The Hunting of the Snark" and "Jabberwocky", all examples of the genre of literary nonsense. He is noted for his facility at word play, logic, and fantasy, and there are societies dedicated to the enjoyment and promotion of his works and the investigation of his life in many parts of the world, including the United Kingdom, Japan, the United States, and New Zealand.

Dodgson's family was predominantly northern English, with Irish connections. Conservative and High Church Anglican, most of Dodgson's ancestors were army officers or Church of England clergy. His great-grandfather, also named Charles Dodgson, had risen through the ranks of the church to become the Bishop of Elphin. His grandfather, another Charles, had been an army captain, killed in action in Ireland in 1803 when his two sons were hardly more than babies. His mother's name was Frances Jane Lutwidge.

The Wright brothers, Orville (August 19, 1871 – January 30, 1948) and Wilbur (April 16, 1867 – May 30, 1912), were two Americans credited with inventing and building the world's first successful airplane and making the first controlled, powered and sustained heavier-than-air human flight, on December 17, 1903. In the two years afterward, the brothers developed their flying machine into the first practical fixed-wing aircraft. Although not the first to build and fly experimental aircraft, the Wright brothers were the first to invent aircraft controls that made fixed-wing powered flight possible.

The brothers' fundamental breakthrough was their invention of three-axis control, which enabled the pilot to steer the aircraft effectively and to maintain its equilibrium. This method became standard and remains standard on fixed-wing aircraft of all kinds. From the beginning of their aeronautical work, the Wright brothers focused on developing a reliable method of pilot control as the key to solving "the flying problem". This approach differed significantly from other experimenters of the time who put more emphasis on developing powerful engines. Using a small homebuilt wind tunnel, the Wrights also collected more accurate data than any before, enabling them to design and build wings and propellers that were more efficient than any before. Their first U.S. patent, 821,393, did not claim invention of a flying machine, but rather, the invention of a system of aerodynamic control that manipulated a flying machine's surfaces.