All of these inventions were made in the mid-to-late 19th century except the a) airplane. b) automobile. c) gasoline engine. d) electric trolley car.

The airplane was successfully created and flown in the twentieth century. Wilbur and Orville Wright invented and flew the first successful airplane in 1903.

Option: A) airplane.

Explanation:

After years of trial and engineering, Orville and Wilbur Wright (Wrights Brothers) built Airplane in 1903. This plane became the first powered aircraft with glides and engine that flew in the sky. The Wright brothers took their first successful flying in 1903, with five people present to witness this flight.        

du boi was considered a radical because he wanted the immediate end for segregation. the biggest different between him and booker t. washington is that, even though washington believed that segregation should be considered illegal, he did not believe at all that a law was needed to keep blacks away from whites and that this would be something natural (to have the races apart) for a long time until society adjusted, while du boi believe that agitation was the only way to end segregation.

what exactly is the question to this?