Timelines grouped by period and listed alphabetically.

• Ancient and Classical: PoDs before 476 A.D.

• Dark Ages and Medieval: PoDs from 476 A.D. to 1492 A.D.

• Early Modern: PoDs from 1492 to 1800.

• 19th Century: PoDs from 1800 to 1900.

• Early 20th Century: PoDs from 1900 to 1945.

• Late 20th Century: PoDs from 1945 to the present.

• Future: Future History

• ASB: PoDs using Alien Space Bats (includes TL’s derived from published works)

• Old Board: timelines from the old board.