Jerry
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Welcome! (start here)
Civil Wars
First Barons' War (1215–1217)
John, King of England (John Lackland Plantaganet)
Magna Carta (1215)
The Commons
Planetary Commons
Outer Space
Astronomy
Schmidt Camera
Attachments
Schmidt camera
Parents
Astronomy
Bernhard Schmidt
Types of Camera
Jumps
Telescopes (1609)