New research has uncovered evidence that an ancient Hawaiian heiau (place of worship, shrine) served as a sophisticated seasonal calendar, demonstrating the advanced scientific knowledge of Native ...

A simple calendar can’t be a security risk, right? Wrong. If you buy something using links in our stories, we may earn a commission. This helps support our journalism. Learn more. Please also ...

Anti-Valentine's Week 2025 calendar full list: Anti-Valentine's Week 2025 is celebrated from February 15th to 21st as an alternative to Valentine's Day. It focuses on self-love and independence.