Mid-Ocean Ridge
first Portugal, then Spain, finally England
1870
1871
1871
France
Lewis and Clark finally arrived at the Pacific Ocean at Astoria, on the mouth of the Columbia River,
Germany
britian and america
Monaco was granted sovereignty in 1861.
Monaco was granted sovereignty in 1861.
There are typically four stages of frontier development: exploration, pioneering, establishment, and development. During the exploration stage, individuals or groups venture into uncharted territory. The pioneering stage involves the initial settlement and development of infrastructure. The establishment stage sees the creation of institutions and a more formal society. Finally, the development stage focuses on economic growth and sustainability.