What were science/tech contributions for Ancient Rome

Along with concrete,the Romans used stone,wood,and marble for building materials. They used these materials to construct civil engineering projects for their cities and transportation devices for land and sea travel. The Romans also contributed to the development of technologies of the battlefield.

they made rome the dominant power in the mediterranean.

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.