Clinton now has 87% chance of winning Trump 13%, page-27

The trebuchet was in use in Europe from the 1100s.
Luckily the Muslim countries have always been technologically backwards and so, despite attacking Vienna 500 years later they still hadn't mastered them.
Were it not for sitting on a big batch of oil, which was useful to Western countries, the Middle East would still be tribes chucking stones at each other.