s. In order to
form a legal framework for the activities of nations on the
continent, an Antarctic Treaty was negotiated that neither denies
nor gives recognition to existing territorial claims; signed in
1959, it entered into force in 1961.

Antigua and Barbuda
The Siboney were the first to inhabit the
islands of Antigua and Barbuda in 2400 B.C., but Arawak Indians
populated the islands when COLUMBUS landed on his second voyage in
1493. Early settlements by the Spanish and French were succeeded by
the English who formed a colony in 1667. Slavery, established to run
the sugar plantations on Antigua, was abolished in 1834. The islands
became an independent state within the British Commonwealth of
Nations in 1981.

Arctic Ocean
The Arctic Ocean is the smallest of the world's five
oceans (after the Pacific Ocean, Atlantic Ocean, Indian Ocean, and
the recently delimited Southern Ocean). The Northwest Passage (US
and Canada) and Northern Sea Route (Norway and Russia) are two
important seasonal waterways. A sparse network of air, ocean, river,
and land routes circumscribes the Arctic Ocean.

Argentina
In 1816, the United Provinces of the Rio Plata declared
their independence from Spain. After Bolivia, Paraguay, and Uruguay
went their separate ways, the area that remained became Argentina.
The country's population and culture were heavily shaped by
immigrants from throughout Europe, but most particularly Italy and
Spain, which provided the largest percentage of newcomers from 1860
to 1930. Up until about the mid-20th century, much of Argentina's
history was dominated by periods of internal political conflict
between Federalists and Unitarians and between civilian and military
factions. After World War II, an era of Peronist authoritarian rule
and interference in subsequent governments was followed by a
military junta that took power in 1976. Democracy returned in 1983,
and has persisted despite numerous challenges, the most formidable
of which was a severe economic crisis in 2001-02 that led to violent
public protests and the resignation of several interim presidents.
The economy has recovered strongly since bottoming out in 2002.

Armenia
Armenia prides itself on being the first nation to formally
adopt Christianity (early 4th century). Despite periods of autonomy,
over the centuries Armenia came under the sway of various empires
including th