NASA
Nasa Star Child: Yuri Gagaran (Level 2)
Brief biography, accompanied by a picture of Yuri Gagarin in his formal army suit. Printable version of page available.
Other
Soviet Space Photos: Photos of Voskhod 3
Actual photos of the Voskhod 3, viewable as larger versions upon clicking the thumbnail.
Other
German Aerospace Center: Human Spaceflight Missions
This site, which is provided for by the German Aerospace Center, contains detailed information on missions to Mir from March '92 to March '97 displayed in the links below.
Wikimedia
Wikipedia: Valentina Tereshkova
The achievements of the first woman in space, Valentina Tereshkova, are overviewed in this Wikipedia encyclopedia article.
BBC
Bbc News: Son of a Peasant
The British Broadcasting Company (April 1, 1998)chronicles Yuri Gagarin's life and accomplishments.
Curated OER
See Explanation. Clicking on the Picture Will Download
This site presents a brief overview and newspaper clip documenting the first manned space mission. Soviet cosmonaut Yuri Alexseyevich Gagarin became the first human in space on April 12, 1961.