North America, 18 Aug 1846: Conquest of California & New Mexico
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Political map of North America & the Caribbean on 18 Aug 1846 (Manifest Destiny: Conquest of California & New Mexico), showing the following events: Conquest of California; Battle of Monterey; End of California Republic; Wilmot Proviso; Santa Anna’s return; Capture of Santa Fe.

U n i t e d

S t a t e s o f

A m e r i c a

C a n a d a(Br.)

R u p e r t ' s L a n d(Br./HBC)

The
Bahamas(Br.)

Newfoundland(Br.)

California(US occ.)

Unorganized
Territory

Leeward Islands(Br.)

Windward
Islands(Br.)

Columbia
District(Br. unorg. terr.)

Nova Scotia(Br.)

British
Guiana(Br.)

Puerto
Rico(Sp.)

Iowa
Territory(US terr.)

P.G. of
Oregon(semi-indep)

Mosquito
Kingdom(Br. prot.)

Lakota
Sioux,
Cheyenne

Iron Confederacy

Great
Basin
peoples

Wisconsin
Terr.(US terr.)

Dutch
W. Indies(Neth.)

Disputed
Territory(US-Mex disp)

St P. & M.(Fr.)

Bay Is.(Br. ctrl)

7 Jul–13 Aug 1846US captures main
Californian ports

7 Jul 1846US forces land
at Monterey

9 Jul 1846California Rep.
joins US

8 Aug 1846Wilmot Proviso
attempts to ban
slavery in conquered
Mexican territory

16 Aug 1846Santa Anna
returns to Mexico

18 Aug 1846US forces capture
Santa Fe

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