20th century

The 20th century, which was a century that ran from January 1, 1900 to December 31, 1999. It was the tenth and final century of the 2nd millennium. 
The 20th century was commanded by a chain of occasions that proclaimed critical changes in world history as to rethink the period: World War I and World War II, nuclear power and space exploration, nationalism and decolonization, the Cold War and post-Cold War conflicts; intergovernmental organizations and cultural homogenization through developments in emerging transportation and communications technology; poverty reduction and world population growth, awareness of environmental degradation, ecological extinction, and the birth of the Digital Revolution. It saw incredible advances in correspondence and therapeutic innovation that by the late 1980s took into account close quick overall PC correspondence and hereditary alteration of life. The expression "short twentieth century" was begat to speak to the occasions from 1914 to 1991.
Worldwide aggregate fruitfulness rates, ocean level ascent and natural breakdown expanded; the subsequent rivalry for land and decreasing assets quickened deforestation, water exhaustion, and the mass eradication of a significant number of the world's species and decrease in the number of inhabitants in others; outcomes which are presently being managed. It took all of mankind's history up to 1804 for the total populace to achieve 1 billion; total populace came to an expected 2 billion of every 1927; by late 1999, the worldwide populace achieved 6 billion. Global education arrived at the midpoint of 80%; worldwide life expectancy midpoints surpassed 40+ years without precedent for history, with over half accomplishing 70+ years (three decades longer than it was a century prior).
Category:2nd millennium