Stonehenge was built in Salisbury Plain between 3100 – 1100 BCE. Commonly known as a site of ritualistic activity, it wasn’t until the mid 20th century that archaeologists realized that Stonehenge also served as an astronomical observatory. According to Sacred Sites, “In the 1950s and 1960s, the Oxford University engineer Professor Alexander Thom and the [...]
Countdown to Powers of Ten Day
- 10/10/10 982 days ago