- January 6 (Stardate 2230.06) – Spock is born on Vulcan in the city of ShiKahr to Sarek and his Human wife, Amanda. (TAS: "Yesteryear"; TOS: "Amok Time", "Journey to Babel"; Star Trek V: The Final Frontier; Star Trek Beyond)
- T'Pring is born on Vulcan. (TOS: "Amok Time")
- According to the Star Trek Encyclopedia and the Star Trek Compendium, a line in an early draft of the script for TOS: "Journey to Babel" suggested that the Vulcan Sarek and the Human Amanda Grayson are married in this year.