How would the world be different if Britain had won the war of 1812?

I think by 1812 the UK had accepted US independence. However, they would have taken parts of the US, possibly some unimportant border regions or states like North Dakota, Nebraska, Minnesota or maybe even Maine. However, the US would have anyway become a world power, because the most important states for the rise of the US were other states like Massachusetts, New York, California, Illinois, Texas, Philadelphia, Virginia, Michigan, New Jersey, maybe Maryland and some other states with big populations and bigger economies who mainly carried or drove the success of the nation.

No Latino gangs in US today

Canada would be speaking English

the Britsih chased Jackson for about 1000 miles from the Great Lakes to the Gulf of Mexico

that is a Rout in any Intelligent persons Knowledge

The Americans would stop saying "We're the Greatest".  A little humility would go a long for them in international relations.

If Britain had won, perhaps it would have made sure the "Indians" kept the western territories promised to them by treaty. Perhaps not. The native peoples were the ones who lost. 

Other than that no one got anything beyond what they had at the start.

There would be subtle changes other than the British Empire would become a communist oligarchy country without any monarchs to rule the world.

I'll tell you after my tea and crumpets.

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Actually the British walked away with a victory having made it to the capital and burned it. American militia had hardly proven to be more than a roadblock to the British army on its way to DC. That did a lot for reinforcing American’s realization that we needed a large enough professional federal army to defend itself after being let down by poorly performing militias. This argument was still going on whether we needed a permanent federal army or if we could rely entirely on militias for our defense, something many people had wanted. The Brits never had the intention of reoccupying the states so they left after their punitive expedition was completed. They achieved their goals including preserving Canada as a separate (from the US) Provence. The real show was in Europe where the continent and Britain were preoccupied with Napoleon.

We did win but should really have totally crushed the upstart usa bastards even more

the UK DID WIN THE WARS OF 1812 Both of them

I see we have 9 Idiots who never finished Kindergarten Madisons Folly caused the USA to Bankrupt itself

we Chased Jackson from the Great Lakes to the Gulf of Mexico took Fort Boyer and then advanced on Main when 17000 troops arrived to tell us the war was over and Canada was safe

in 2012 CANADA issued a medallion celebrating the 1812 Victory

Whilst the USA remained silent in their Loss

I bet my 3 thumbs down believe edison invented the Light Bulb when History pro9ves edison the Fool never invented anything

and the USA NEVER saved the UK WW2 the RAF did