The Arab spring. People communicated through Facebook and Myspace on where to protest. There governments folded. <span />
It began with the Portuguese, who went to West Africa in search of gold. The first Europeans to come to Africa's West Coast to trade were funded by Prince Henry, the famous Portuguese patron, who hoped to bring riches to Portugal
The Erie Canal, in New York state (shown below), was 360 mi (580 km) long, and connected New York with the Great Lakes via the Hudson River. Locks were built to overcome the 571-ft (174-m) difference between the level of the river and that of Lake Erie. It opened in 1825.
The Age of Enlightenment was an intellectual and philosophical movement that dominated the world of ideas in Europe during the 17th and 18th centuries
The Enlightenment produced numerous books, essays, inventions, scientific discoveries, laws, wars and revolutions.
The Enlightenment helped combat the excesses of the church, establish science as a source of knowledge, and defend human rights against tyranny. It also gave us modern schooling, medicine, republics, representative democracy, and much more.
