Webster–Ashburton Treaty of 1842. It settled the border dispute between Canada and the Eastern States, such as Maine and Vermont. It helped to end the slave trade
The Oregon Treaty of 1846, which established the US–British frontier west of the Rocky Mountains (today's US–Canada boundary)
The International Meridian Conference of 1884 in Washington DC, establishing the Greenwich Meridian, the world time zone system and the universal day as international standards
The Convention on International Trade in Endangered Species of Wild Fauna and Flora, better known as CITES
Topics referred to by the same term
This disambiguation page lists articles associated with the title Treaty of Washington. If an internal link led you here, you may wish to change the link to point directly to the intended article.