In what century did the Han Dynasty
end?

The Han Dynasty (202 BCE - 220 CE) was the second dynasty of Imperial China (the era of centralized, dynastic government, 221 BCE - 1912 CE) which established the paradigm for all succeeding dynasties up through 1912 CE. It succeeded the Qin Dynasty (221-206 BCE) and was followed by the Period of the Three Kingdoms (220-280 CE).

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.

i think its 5! hope i