On October 18, 1931, Edison passed away in west Orren, in the death of the age of 84 years, on October 21, 1931, the entire United States blacked out to show condolences.
On October 18, 1931, Edison governed passing away in west Orren, died at the age of 84 years old, on October 21, 1931, the entire US turned off the lights shows to mourn.
Edison passes away in Xiaolunzhi on October 18 , 1931, 84-year-old, all over USA all the year round on October 21 , 1931, to put out the light to demonstrate grieving over.