The Seventeenth Era was a period of time followed by the Eighteenth Era. By 19 BBY, on the Unknown Regions planet Solitair, the Garwian dame Mimott showed a modern cloth that incorporated elements from several eras to the Chiss military officers Ar'alani and Mitth'raw'nuruodo. Mimott remarked that the cloth used a dye coloring first used in the Seventeenth Era.
The Seventeenth Era was mentioned in the 2020 novel Thrawn Ascendancy: Chaos Rising, the first installment of Timothy Zahn's Star Wars: The Ascendancy Trilogy.
The Seventeenth Era was mentioned in the 2020 novel Thrawn Ascendancy: Chaos Rising, the first installment of Timothy Zahn's Star Wars: The Ascendancy Trilogy.