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Mexico, Gulf of

(Encyclopedia)Mexico, Gulf of, arm of the Atlantic Ocean, c.700,000 sq mi (1,813,000 sq km), SE North America. The Gulf stretches more than 1,100 mi (1,770 km) from west to east and c.800 mi (1,290 km) from north t...

constitution, principles of government

(Encyclopedia)constitution, fundamental principles of government in a nation, either implied in its laws, institutions, and customs, or embodied in one fundamental document or in several. In the first category—cu...

Signs of the Zodiac (table)

(Encyclopedia)Signs of the Zodiac

Russian and Soviet Rulers since 1462 (table)

(Encyclopedia)Russian and Soviet Rulers since 1462(including dates of rule) House of Rurik House of Godunov Usurpers House of Romanov Provisional Government(premiers) Soviet Russia (1917–22) and the U...

Periodic Table of the Elements: Actinium

(Encyclopedia)Periodic Table of the Elements: Actinium ...

Periodic Table of the Elements: Aluminum

(Encyclopedia)Periodic Table of the Elements: Aluminum ...

Periodic Table of the Elements: Americium

(Encyclopedia)Periodic Table of the Elements: Americium ...

Periodic Table of the Elements: Antimony

(Encyclopedia)Periodic Table of the Elements: Antimony ...

Periodic Table of the Elements: Argon

(Encyclopedia)Periodic Table of the Elements: Argon ...

Periodic Table of the Elements: Arsenic

(Encyclopedia)Periodic Table of the Elements: Arsenic ...