The Wright brothers, Orville and Wilbur, are most famous for creating and flying the first powered and controlled airplane. However, this invention was the culmination of a long and close relationship.
While neither of the brothers completed high school, they built and ran a printing press together while in their early twenties, and launched a short-lived newspaper. Later, they ran a bicycle shop together, manufacturing and selling their own design. This gave them the skills to develop the Wright Flyer and the funds to continue working on it in spite of initial skepticism from the international community.
While it could be tempting to divide up the innovations and work completed by each brother, they were insistent on sharing the credit equally between them.
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