The convention of 1818

established native american trading posts in oregon.

established taxes in oregon.

abolished slavery in oregon.

solved a dispute over oregon's boundaries.

The Convention respecting fisheries, boundary and the restoration of slaves between the United States of America and the United Kingdom of Great Britain and Ireland, also known as the London Convention, Anglo-American Convention of 1818, Convention of 1818, or simply the Treaty of 1818, was a treaty signed in 1818 between the United States and the United Kingdom.

Bis your correct answer

He droped it over the bridge into the river