Glossary
8 terms and concepts indexed
Terms starting with "Y"
8 terms
Y
Young Dryas Impact Hypothesis
The theory that a comet or asteroid impact caused significant climatic changes around 12,900 years ago, leading to the rapid cooling of the Earth known as the Younger Dryas, which impacted megafauna a...
Younger Dryas
A geologic period from approximately 12,900 to 11,700 years ago, characterized by a return to glacial conditions in the Northern Hemisphere which followed a warming trend.
Younger Dryas Boundary
A period approximately 12,900 to 11,700 years ago characterized by a sudden return to cooler climates, potentially resulting from a comet impact, influencing human migration and development.
Younger Dryas Impact
A hypothesis suggesting that a comet or asteroid impact around 12,900 years ago led to a sudden climate change, possibly causing the extinction of large mammals and the rise of advanced civilizations.
Younger Dryas Impact Hypothesis
A theory suggesting that a comet or asteroid impact caused abrupt climate change during the Younger Dryas period around 12,900 years ago, leading to significant ecological and cultural shifts.
Younger Dryas Impacts Hypothesis (YDIH)
A theory suggesting that a comet impact caused significant climatic changes during the Younger Dryas period, around 12,900 years ago.
Yowie
A legendary creature from Australian folklore, similar to Bigfoot, described as a large hairy humanoid said to inhabit remote bushland.
Yuga Shift
A theory derived from Hindu cosmology suggesting that humanity undergoes cyclical phases of moral and spiritual evolution, with the Yuga Shift marking a transition to a new era.