Which European discoverer of the Mississippi river had to be buried in secret when he died so that the natives of the region would not realize that he was not immortal?
Simon Bolivar was named The Great Liberator' as he led the revolution that freed many South American countries from Spanish control.Venezuela, Bolivia,Peru, and Ecuador were liberated along with:
As a result of the work of Edward Jenner we have the complex system of inoculations that every child painfully experience during his/her early years.in 1796,he made his first vaccination him from which disease?
