In the eighth century, Frankish leader Charles Martel stopped the advance of Muslims from Spain into France, thus, impacting the Christian Europe's relations with Muslim Spain as well as impacting the Islamic expansion.
The fact that women could do the same as when, for example during the war many women took over the jobs of men due to. The fact that men where off fight and nobody to take they’re spots
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The role of the President pro tempore of the Senate is mostly ceremonial as he is appointed to work in the place of a vice president when he is not available and take everything in control.
Mostly the power is in the hands of the other leaders and the senators but in the absence of the vice president the President pro tempore of the senate takes his place and certain duties are authorised which he can perform during that time.