The Eighteenth Era was a period of time in the history of the Unknown Regions Garwian Unity nation. It was preceded by the Seventeenth Era. By 19 BBY, on the Unknown Regions planet Solitair, the Garwian dame Mimott showcased a modern cloth that incorporated an edging style from the Eighteenth Era to the Chiss officers Ar'alani and Mitth'raw'nuruodo.
The Eighteenth Era was mentioned in the flashbacks of the 2020 novel Thrawn Ascendancy: Chaos Rising, the first installment of Timothy Zahn's Star Wars: The Ascendancy Trilogy.
The Eighteenth Era was mentioned in the flashbacks of the 2020 novel Thrawn Ascendancy: Chaos Rising, the first installment of Timothy Zahn's Star Wars: The Ascendancy Trilogy.