While the wikipedia page you cite does have a section heading called “1945-1992”, that’s only because it uses WW2 and the EU treaty as endpoints. Not because laws were being passed in 1945. Moreover, the cited page doesn’t list country-level laws in 1945-1992, it lists international treaties; and the earliest listed treaty is from 1953.
European countries had disability laws passed in 1945
While the wikipedia page you cite does have a section heading called “1945-1992”, that’s only because it uses WW2 and the EU treaty as endpoints. Not because laws were being passed in 1945. Moreover, the cited page doesn’t list country-level laws in 1945-1992, it lists international treaties; and the earliest listed treaty is from 1953.