What happened 2178 in Star Trek?

There isn't a specific, well-known event in Star Trek that occurred in the year 2178. The Star Trek universe has many different timelines and series, and most of them don't focus on that specific year.

Here's why you might not find a major event from that year:

* Focus on later centuries: The main Star Trek series (TOS, TNG, DS9, VOY, ENT) mostly focus on the 23rd, 24th, and 29th centuries. The year 2178 falls in between those.

* No canonical events: While some books or video games may have events set in that year, there is no major canon event in Star Trek that takes place in 2178.

* Timeline gaps: The Star Trek universe is full of gaps in the timeline, leaving room for fan theories and speculation.

If you are looking for something specific that happened around that time, you might need to look for:

* Star Trek novels and comics: These often explore events outside the main series and may feature events in 2178.

* Fan-created content: Many fans create their own stories and timelines, some of which may include events in 2178.

Ultimately, the year 2178 isn't a particularly significant year in the established Star Trek universe, but that doesn't mean it can't be explored in future stories.