Dolly, a female sheep, becomes the first mammal to be cloned from an adult somatic cell in 1996, leading to advancements in stem cell research. 1996 The landmark Supreme Court decision Roe v. Wade legalized abortion in the first trimester of pregnancy in 1973. 1973 The first operational image from the James Webb Space Telescope of the galaxy cluster SMACS 0723 is photographed and revealed to the public in 2022. 2022
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