What did the Adams-Onis Treaty accomplish? It established borders in the western part of the continent.
It secured US trading rights at the Port of New Orleans.
It turned over West Florida to the United States.
It negotiated the sale of the Louisiana Territory to the United States

Under the onís,adams treaty of 1819 which is also called the transcontinental treaty and ratified in 1821 the united states and spain defined the western limits of the louisiana purchase and spain surrendered its claims to the pacific northwest. In return the united states recognized spanish sovereignty over texas

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