Laika the space dog

Sputnik 1

Sep 24, 1957

The Sputnik 1 was the first to be successfully launched and enter earth's orbit which began the space age. https://www.nasa.gov/multimedia/imagegallery/image_feature_924.html

Sputnik 2

Nov 3, 1957

Speed on orbit-4,576 miles/s
Orbits completed- 2570

The first animal to orbit earth!!!!!

Nov 3, 1957

Laika the dog was the first to orbit the earth

Explorer 1

Jan 31, 1958

Explorer 1 was the first satellite of the United States,It was part of its participation in the International Geophysical Year

Luna 1

Jan 2, 1959

The first spacecraft to reach the vicinity of the Earth's Moon, and the first spacecraft to be placed in heliocentric orbit
http://www.zarya.info/Diaries/Luna/Luna01.php

Yuri Gagarin

Apr 12, 1961

Yuri Alekseyevich Gagarin was a Soviet pilot and cosmonaut. He was the first human to journey into outer space when his spacecraft completed an orbit of the Earth on 12 April 1961

Alan Shepard

May 5, 1961

Rear Admiral Alan Bartlett Shepard Jr. was an American astronaut, naval aviator, test pilot, and businessman.He became the first American to travel into space
https://www.jsc.nasa.gov/Bios/htmlbios/shepard-alan.html

John Glenn

Feb 20, 1962

Colonel John Herschel Glenn Jr. was a United States Marine Corps,.
Became the first American to orbit the Earth, circling it three times

Gemini Program

Jun 3, 1965

Gemini 4 mission, Ed White became the first American to conduct a spacewalk
https://www.nasa.gov/multimedia/imagegallery/image_feature_1098.html

Gemini Program- Gemini 8

Mar 16, 1966

The mission conducted the first docking of two spacecraft in orbit but the spacecraft had a malfunction
https://nssdc.gsfc.nasa.gov/nmc/spacecraftDisplay.do?id=1966-020A

Apollo 1

Feb 21, 1967

Apollo 1 was going to the first 3 man mission to do a lunar landing but during a flight test a fire happened inside the capsule killing all 3 men
https://www.space.com/17338-apollo-1.html