2080年、宇宙エレベ-タ-の建設が始まった
5年後地上基地局、宇宙基地局の整備を完了し
2087年ロ-プの張り出し完成
2090年、運用開始
In 2080, construction of the space elevator began.
Five years later, the ground base station and space base station were completed.
In 2087, the rope extension was completed.
Operation began in 2090.

