Thomas Edison suggested for Edison's anti-AC stance. One notion is that the inventor could not grasp the more abstract theories behind AC and was trying to avoid developing a system he did not understand. Edison also appeared to have been worried about the high voltage from misinstalled AC systems killing customers and hurting the sales of electric power systems in general. Primary was the fact that Edison Electric based their design on low voltage DC and switching a standard after they had installed over 100 systems was, in Edison's mind, out of the question. By the end of 1887, Edison Electric was
Thomas Alva Edison Memorial Tower and Museum now the Thomas Edison National Historical Park. The original Menlo Park buildings began to deteriorate, and by 1926 most of the buildings had either collapsed or burned, and the only two remaining buildings were later moved to Greenfield Village in Dearborn, Michigan. The Thomas A. Edison Memorial Tower was added to the National Register of Historic Places on November 30, 1979 as an important architectural and commemorative landmark. The tower's pinnacle is meant to represent an incandescent light bulb and originally included an audio system that according to a 2004 Weird NJ magazine could be heard from a distance of