1931: The electron magnifying lens is concocted by Max Glade and Ernst Ruska, permitting amplification up t0 1 million times. This development enabled researchers t0 examine mind cells with more prominent detail.
1968: Intellectual estimation scales are made which enables scientists to gauge weakness and gauge the volume of harmed mind tissue.
1974: Congress builds up the National Organization 0n Maturing (NIA). Right up till the present time,