Category:20th century in outer space

Summary

Category:20th century in outer space is a Wikimedia category^[1].

Key Facts

• Category:20th century in outer space's instance of is recorded as Wikimedia category^[2].
• Category:20th century in outer space's follows is recorded as Category:19th century in outer space^[3].
• Category:20th century in outer space's followed by is recorded as Category:21st century in outer space^[4].
• Category:20th century in outer space's category combines topics is recorded as 20th century^[5].
• Category:20th century in outer space's category combines topics is recorded as outer space^[6].