<span>Advanced mathematics was critical to the development of the Mayan calendar. The Maya needed a system of mathematics to record celestial movements over the years, to handle large numbers, and to calculate the solar and lunar year with great precision.</span>
I'm pretty sure its A. The collapse of Christianity.
The Iron Curtain !
now i just have to reach the word requirement
Yes! She is now 62, but still alive and well! c:
<span>It is Pythagoras who introduced his famous theorem named pathagorian theorem</span>