What was the largest empire in 13th centry?

the space race was a battle to make advanced technology to get to the moon and to get a better understanding of space.

the triple alliance. germany and austria-hungary were already allies by 1879 when, worried about a threat from russia, they formed the dual alliance. italy joined the group in 1882. there was a concern about a possible attack from france and the alliance needed powerful friends to defend it.