i think you mean antibiotic ... but Alexander Fleming was the one who advanced the antibiotic (world) and was responsible for creating these categories of medicine... this affected the 20th century because millions of people use antibiotics everyday and without them... many diseases would still affect people without a cure
US has most of its money invested in China and China will not let the US pay off its debt with them.
This pictures shows all the events
Answer:
Sugar Cane and Exotic foods
Explanation:
The Sugar cane market that produced sugar was extremely valuable to Europeans. They even nicknamed the substance, "white gold." Eventually, slave plantations would be made to produce mass amounts of sugar for Europeans. Foods like Potatoes and Corn had also been introduced to Europeans during the discovery of the New World. This had been demanded more during the Columbian Exchange and eventually lost market when Europeans started to grow their own food originated from the Americas.
In case you need another: Spices were demanded in Europe that came from mainly Central America.
