Short answers, pulled from the story.
Thomas Edison was born in 1847 and was completely deaf in one ear and barely hearing in the other. This condition was likely caused by scarlet fever and recurring middle-ear infections during his childhood.
Thomas Edison established the first industrial research laboratory in Menlo Park, New Jersey, in 1876. This facility employed dozens of researchers and engineers to work under his direction.
Thomas Edison died on the 18th of October 1931, at Glenmont. He was buried on the property where he died.
Thomas Edison left behind a legacy of 1,093 US patents. These patents transformed the modern world through inventions like the phonograph and the electric light.
The first successful tests with Thomas Edison's motion picture camera were publicly seen on the 20th of May 1891. This prototype used 19mm film with round images and was viewed in a simple viewer.