What Rocket Am I?: Quiz 4

Clue 1: I was developed in the Soviet Union by Sergey Korolyov.
Clue 2: I carried the first human, Yuri Gagarin, into space.
Clue 3: I am known for the visual "Korolev Cross" during booster separation.
Clue 4: I am the world's first intercontinental ballistic missile adapted for space launches.
Clue 5: I feature a central core with four strap-on boosters.
Clue 6: I was first launched in 1957.
Clue 7: I launched the first artificial satellite, Sputnik 1.

Yes, I am R-7.

My derivatives, such as the Soyuz rocket, continue to be used for crewed missions to this day.