A map of the western United States and northern Mexico showing the territorial disputes settled and boundary established by the Adams-Onis Treaty between the United States and Spain in 1819. The territorial disputes involved the natural...

A map from 1916 of western Canada (British Columbia, Alberta, Saskatchewan, and Manitoba) from the Pacific coastline east to the Ontario border, and from approximately latitude 60 degrees North to the International boundary with the...

An overview of the Oregon Boundary Treaty of 1846, which set the boundary between British North America and the United States at the 49th parallel. Information on the treaty, the personalities involved, relevant images, and a map are...

This site features an interdisciplinary lesson plan for the book "Letters from Rifka" by Karen Hesse. Discover how this twelve year old girl's struggle to get to America from Russia.

A map of the southern border of Alaska and Canada showing the area of boundary dispute and the boundary established by the Hay-Herbert Treaty between Britain and the United States in 1903. The map shows the coastline and fjords of the...

A map of Africa as it was known in 1882 before the Berlin Conference of 1885, when the most powerful countries in Europe at the time convened to make their territorial claims on Africa and establish their colonial borders at the start of...

A map from 1914 of the completed canal across the Isthmus of Panama. The map shows the Caribbean Sea entrance at Colon, the route of the canal through Gutan Lake and lock system, the Pacific entrance at the city of Panama, the Canal Zone...

This is an interesting map of Africa showing the continent before the Berlin Conference of 1885, when the most powerful countries in Europe at the time convened to make their territorial claims on Africa and establish their colonial...

A map showing country boundaries of Europe as they existed in 1888, including major cities, rivers, and landforms. This map highlights the significance of the use of natural boundaries (rivers and mountains) over cadastral (surveyed or...

A map of Africa showing the continent prior to the Berlin Conference of 1885, when the most powerful countries in Europe at the time convened to make their territorial claims on Africa and establish their colonial borders at the start of...

A map showing the breakup of Austria-Hungary under the Treaty of Saint Germain (Austria) and the Treaty of Trianon (Hungary) at the close of the First World War. This map shows the newly established boundaries for the former territories...

A map of the United Stated during the American Civil War (1861-1865) showing State and territory boundaries, with dates of statehood for the territories from 1796 to 1861. The map is color-coded to show the Union States, Confederate...

A map from 1903 of Nebraska showing county borders, cities and towns, rivers, and railroads. This map also shows the rock types in the state. "Nebraska, a central State of the American Union, lies between 40 degrees and 43 degrees N....