Oct 1842Cmdre Jonesseizes Monterey
Nov 1842Maine disputeresolved
Nov–Dec 1842Texians raid Mier
?? 1843British build FortVancouver
19 Apr 1843–? ?? 1855Unsuccessful BelgianSanto Tomas colony
30 Apr–16 May 1843Texas & Yucatanfight Mexican navy
2 May–5 Jul 1843Settlers form prov.gov. in Oregon
22 May–? Oct 1843Great Migration of 1843:major wagon trains begintraveling Oregon Trail