What was the most common material used by pre-historic man to create weapons?

answer is 1935

because gandhi led a march the sea in 1930 and 5 years later he did it again

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.