Search up information about him. !!
The battle of Tours united Christians against Islamic expansion and this among the following events allowed Christianity to act as a unifying force in Medieval Europe. The correct option among all the options given in the question is the last option or option "d".
<span>Complex drainage systems to keep structures from flooding this works</span>
Voters in a district select one candidate to fill a particular office.
The answer is Oculus. Hope that helps! ^-^