Timeline - 3,750 bc

Year

Event

3,750 bc

•1	An ice age begins on the planet Sigma Draconis VI. The inhabitants construct underground shelters for its population but only the females move into these, leaving the males on the surface. Both groups lose all understanding of their technology over the next few thousand years.1

References

#	Series	Season	Source	Comment
1	TOS	3	Spock's Brain	Spock described the event as happening 6,000 years ago. This is a rounded date

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Last updated : 7 Jul 2004

Series:	TOS Season 3 (Disc 1)
Source:	Spock's Brain
Comment:	Spock described the event as happening 6,000 years ago. This is a rounded date