|2297 2298 2299 2300 2301 2302 2303|
|2270s 2280s 2290s 2300s 2310s 2320s 2330s|
|23rd century - 24th century - 25th century|
- Combadges –- communicators incorporated into the metallic Starfleet insignia on uniforms -- begin general use in this year. (USS Cheyenne Operations Manual)
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