Igor Sikorsky
18891972
American aviation pioneer from the Russian Empire who designed the world's first successful four-engine aircraft and four-engine bomber, also excelling in helicopter design
සිහිවටන 3 හමු විය
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පෙරහන යෙදූ ජීවිත හි සියල්ල බලන්න19191972
American baseball player who broke Major League Baseball's color line in 1947 and became a leading voice in the civil rights movement
