1867 – Alaska is purchased from Russia for $7.2 million, about 2-cent/acre ($4.19/km²), by United States Secretary of State William H. Seward.
1867 - Alaska dibeli dari Rusia sebesar $ 7,2 juta, sekitar 2 sen / acre ($ 4.19/km ²), oleh Sekretaris Negara Amerika Serikat William H. Seward.