<span>The Indians tried to negotiate</span>
The toothbrush evolved over time and mainly out of necessity. Traces of the first toothbrush can be dated back as early as 3500 B.C.E. These bamboo sticks were then used just like a modern manual toothbrush to clean the teeth. Eventually, the Chinese version of the toothbrush made its way to Europe.
Explanation:
Geocentric model of planets was proposed by Ptolemy. It stated that all sun, planets and stars revolve round the earth in circular orbits.
Island Hopping
Island hopping or leap frogging was the military strategy used by the Allies in the Pacific War against Japan and by the Axis powers in WWII
In 1969, Nixon halted the dumping of toxics into the Great Lakes. Nixon was responsible for the push to develop the Environmental Protection Agency. He created the Council on Environmental Equality in 1970 and passed the Clean Air Act in 1972.
