Britain and the United States...
Russian expeditions and settlers had...
Canada quickly expanded as Britain...
The threat posed by the Alaska...
While the Canadians were expanding...
In 1874, gold was discovered in the...
By the 1870s polar exploration was...
For more than a century, Denmark's...
On 16 August 1896 gold was...
After more than ninety years of...
Central American instability came to...
In 1902-03, Britain, Germany and...
In 1909 American explorer Robert...
Political instability in the...
In return for Denmark abandoning any...