Duba wurin da ke ƙasa sannan ka amsa tambayar daga baya a cikin harshe ɗaya kamar yadda wurin yake: Passage: William Howard Stein (Yuni 25, 1911 <unk> Fabrairu 2, 1980) wani masanin kimiyyar halittu ne na Amurka. Tambaya: yaushe William Howard Stein ya mutu?
2 ga Fabrairu, 1980