The law in question was one that required unanimous shareholder approval for moves. Now it just requires majority approval. I can find plenty of articles talki

The law in question was one that required unanimous shareholder approval for moves. Now it just requires majority approval. I can find plenty of articles talking about the repeal of that law in 2022, but I haven't found one that tells me when it was enacted. Does anyone happen to know? In 1993 Microsoft moved from Delaware to Washington. Microsoft went public in 1986 and so I'm having a hard time imagining that they could have gotten unanimous shareholder approval for anything in 1993 and so infer that the unanimous requirement law came sometime after that.