Curated OER
Educational Technology Clearinghouse: Clip Art Etc: Paris
Ancient Greek Mythology. Paris begins the Trojan War by kidnapping Helen of Troy, the most beautiful woman in the world.
Curated OER
Unesco: Spain: Las Medulas
In the 1st century A.D. the Roman Imperial authorities began to exploit the gold deposits of this region in north-west Spain, using a technique based on hydraulic power. After two centuries of working the deposits, the Romans withdrew,...