| Timeline |
| 1760s •1770s • 1780s • 1790s |
| 1800 • 1801 • 1802 • 1803 • 1804 1800s part of the 19th century 1805 • 1806 • 1807 • 1808 • 1809
|
| 1810s • 1820s • 1830s • 1840s |
By the 1800s at the latest the Arcateenians had faster-than-light travel capabilities, including transporter systems and superluminal communications technology. (TV: Greeks Bearing Gifts, TV: Invasion of the Bane)
Openings to the Yssgaroth's universe could be found in 1800s in London, near Stonehenge and on the unnamed planet in the Althosian system. (PROSE: The Pit)