IF YOU WANT TO LEARN- READ, READ, READ
PART 0:HISTORICAL EVENTS BY CENTURY
Timeline of Inventions
Major events of the 13th century (1201-1300)
Major events of the 14th century (1301-1400)
Major events of the 15th century (1401-1500)
Major events of the 16th century (1501-1600)
Major events of the 17th century (1601-1700)
Major events of the 18th century (1701-1800)
Major events of the 19th century (1801-1900)
Major events of the 20th century (1901-2000)
Note: the 20th century saw an explosion in literature, war, art, science, and population and it requires pages upon pages on Wikipedia to cover all of it (whereas all previous centuries can be summarized on one Wiki page!). That tells you right there that the 20th century is a critical transition century leading into the next millinium. See the "See also" at the bottom of the 20th century Wiki page.
PART 1: THE SEA RACE
Early Maps of the World
Ancient World Maps
Fra Mauro Map of the World (1450)
Kangnido Map (1402)
Bridging the Dark Ages
Ptolemy
Marco Polo
Europe Reaches Out
Age of Discovery
Overview of Portuguese Explorations (your all in one webpage!)
Prince Henry (The Navigator)
Vasco De Gama
Ferdinand Magellan
Captain James Cook
China Reaches Out
Overview of China and Expeditions (your all in one webpage!)
Zheng He (Cheng Ho)
Zheng He (his ships)
PART 2: THE SPACE RACE
Science Fiction Writers (@ Wikipedia)
Arthur C. Clarke
Robert Heinlein
Jules Verne
H. G. Wells
Rocket Pioneers (@ Wikipedia)
Konstantin Tsiolkovsky
Robert Goddard (@ Wikipedia)
Robert Goddard (@ NASA)
Robert Goddard (A Man and his Rockets, @ NASA)
Wernher Von Braun
Hermann Oberth
Sergey Korolyov
Qian Xuesen
Rockets and Orbits
History Timeline of Rockets (@ NASA)
Rocket Basics (@ NASA Edu)
Brief History of Rockets (@ NASA Edu)Cold War Links
The Cold War (1945-1991)
China Civil War (begun April 1927, resumed 1946, ended 1950)
Berlin Blockade (24 June 1948 - 12 May 1949)
Korean Conflict (25 June 1950 - armistice signed 27 July 1953)
Sputnik (4 October 1957)
The Space Race (1957-1975)
Bay of Pigs Invasion (April 1961)
Cuban Missile Crisis (October 1962)
Vietnam War (26 September 26 1959 - 30 April 1975)
Able Archer (September 1983)
Strategic Defense Initiative (23 March 1983 - 1990)
Fall of Berlin Wall (1989)
Tiananmen Square (April 1989)
NACA and NASA
NACA (@ Wikipedia)
NASA (@ Wikipedia)
History of NACA and NASA
NASA HomeSpace Task Group and NASA Pioneers
Maxime Faget
Robert Gilruth
Christopher Kraft
Eugene Kranz
James E. Webb
All NASA Mission 1961-1972
Manned Mercury, Gemini, & Apollo Missions (1961-1972)
Project Mercury
Project Mercury (@ NASA)
Project Mercury (@ Wikipedia)
Project Mercury Goals (@ NASA)
Project Mercury Missions (@ NASA)
Lovelace's Women! (@ NASA)
The Mercury 13 Women (@ Wikipedia)Project Gemini
Project Gemini (@ NASA)
Project Geminin (@ Wikipedia)
Project Gemini Goals (@ NASA)
Project Gemini Missions (@ NASA)
Project Apollo
Project Apollo (@ NASA)
Project Apollo (@ Wikipedia)
Apollo Missions (@ NASA)
NASA Apollo History/Resources
Moon Landing Conspiracy Theories (@ Wikipedia)
PART 3: THE FINAL FRONTIER
Commercial Space Companies
Blue Origin | Jeff Bezos
SpaceX | Elon Musk
Virgin Galactic | Richard Branson
Spaceport America (in New Mexico)
Current Space News
National Efforts
The Meaning of Apollo (Four 3 min moves on Apollo)
China's Shenzhou 11 Mission: China's Longest Manned Mission to Date (10.17.16)
How Should Ameruca React to China's Space Plans (10.14.16)
Mars
Summary of All Mars Mission Plans (10.12.16)
Obama's Dream of Mars as a Corporate Space Race (10.12.16)
Will Mars Colony Bring Back City States of Ancient Greece?
SpaceX Mars Mission Visualization
Politics/Military
Space Arms Race Presents New Threat (10.17.16)
Trump's Space Doctrine (has links to Clinton's Space Doctrine, 10.24.16)
Space Tourism / Commercial Space
Space Tourism Launching in 2018- Blue Origins (10.16.16)
Billionaires Start a New Space Race (10.17.16)
Boeing's Starliner Commercial Crew Spacecraft (10.12.16)
Blue Origin to Lauch Astronauts in 2017
Colonzing Space
Space Habitat Designs: Visualization Video (10.11.16)
Private Space Stations to Launch Soon (10.13.16)
Asgardia- Space-based Nation Accepting Applications (10.14.16)
UN May Soon Approve Asgardia Citizenship (10.17.16)
Russian Space Program
@ Wikipedia
Russian Federal Space Agency (@ Wikipedia)
Russian Federal Space Agency Home
Soviet Moon Landing Program
Guide2Russia.comChinese Space Program
@ Wikipedia
Manned Space Missions
Chinese National Space Administration HomeNASA's Future
NASA Moon, Mars, and Beyond
Constellation ProjectSpace Societies
The Mars Society
The Moon Society
National Space Society
Ad Astra (NNS publication)
Space Settlement
Milestones to Space Settlement
Barriers to Space Settlement