Eufaula, Alabama. Eufaula is the largest city in Barbour County, Alabama, United States.
Leonardo da Vinci (1452â1519) is generally credited with inventing the helicopter, but the first practical design was developed only in the 1930s by Russian-born Igor Sikorsky (1889â1972). Today, typical uses for helicopters include military transportation and air-sea rescue.eonardo da Vinci (1452â1519) is generally credited with inventing the helicopter, but the first practical design was developed only in the 1930s by Russian-born Igor Sikorsky (1889â1972). Today, typical uses for helicopters include military transportation and air-sea rescue.
The brothers Orville and Wilbur Wright were two Americans who are generally 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 17 December 1903 in Kitty Hawk, NC on December 17, 1903.