The fundamental modernization of ribbed groin vaults in Gothic cathedrals was to accommodate stained glass window. The ribbed groin vault is the connection of two or three barrel vaults yields a rib vault or ribbed vault when they are bordered with an armature of piped masonry often engraved in decorative patterns and associate groin vault is an older custom of vault structure.
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The Antiballistic Missile Treaty was created because the countries involved needed limitations on the ways that the they could use anti-ballistic missile systems. The treaty was signed by two countries: the United States and the Soviet Union. In 2002, the United States withdrew from the treaty since it was the only remaining party that followed the treaty. After the United States withdrew from the treaty, it was terminated.
It was very important for controlling the Mississippi River because it had easier trade since it led off to the gulf of Mexico which was an excellent trading spot, and well the north needed it to make trade easier to obtain
Taoism stresses rituals and believes in many gods and ancestral spirits. Over time, religious Taoism began to focus on the quest for personal immortality, using science to search for magical potions that would grant healing powers and eternal life.
