nevada

Doing a research i read in wikipedia that ''As one of the final attempts at compromise to avoid the Civil War, in December 1860, a U.S. House of Representatives committee proposed to admit New Mexico as a slave state immediately. Although the measure was approved by the committee on December 29...

"Greater Cascadia," with way more territory than any real Cascadia would realistically be able to acquire. Especially SF.

With a POD after 1815, have a naval engagement between at least two ships with deck mounted guns (not just people on the decks holding small arms) on Lake Tahoe.