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
အောက်မေ့ဖွယ်စာမျက်နှာ ၃ တွေ့ရှိ
စစ်ထုတ်ချက်ဖြင့် အသက်တာများတွင် အားလုံးကြည့်ရန်19191972
American baseball player who broke Major League Baseball's color line in 1947 and became a leading voice in the civil rights movement
