Question

왜냐하면 그 당시 60년대 말은 달로 사람을 보내고 심해 탐사에 나서던 시기니까요.

Accepted Answer

because what was happening, this was in the late '60s, we were going to the moon, we were exploring the deep oceans.

Front	왜냐하면 그 당시 60년대 말은 달로 사람을 보내고 심해 탐사에 나서던 시기니까요.
Back	because what was happening, this was in the late '60s, we were going to the moon, we were exploring the deep oceans.