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Throughout history, archaeologists have uncovered countless tools from early civilizations. The majority are made of stone, but a group of Spanish experts discovered incredible rock crystal weaponry. One of the most spectacular crystal daggers, dating back to at least 3,000 BC, demonstrates the extraordinary ability of the sculptor.The incredible find occurred at the Montelirio tholos, a megalithic tomb in southern Spain. This gigantic site, which spans 50 meters, is made up of massive slate slabs. The place was excavated between 2007 and 2010. Scholars from the University of Granada, Seville, and the Spanish Higher Council for Scientific Research published a...

WASHINGTON (AP) — When archaeologists first discovered the 5,000-year-old ornate tomb in Spain, they assumed it was for a man. It held a rock crystal dagger, ivory tusks and other lavish items. But now they’ve determined the remains are those of a woman, and all it took was two teeth. The researchers used a new method of determining sex that analyzes tooth enamel. This technique, developed about five years ago, is more reliable than analyzing skeletal remains in poor condition, according to their study published Thursday in the journal Scientific Reports. Most details about the life of the “Ivory Lady,”...