Hypatia is famous for being the greatest mathematician and astronomer of her time, for being the leader of the Neoplatonist school of philosophy in Alexandria, for spectacularly overcoming the suffering a violent death at the hands of ignorant zealots.
The Black Death is considered as the deadliest pandemic in history. There were four main forms of this plague namely: bubonic, pneumonic, septicemic and enteric plague. It wiped out around 200 million people from Europe and Asia. It was caused by yersinia pestits, a type of bacteria transmitted through flea bites or inhalation. One of the main reasons why the plague spread quickly was the terrible health condition of the city dwellers due to poverty and malnutrition. The great famine of 1315 struck many parts of Europe and it lasted for almost seven years. The famine ultimately weakened the immune system of the dwellers in the cities.
An economic slump due to the government over spendings in Vietnam