1. The earliest recorded writings date back to around 6,600-6,200 BC in China, though writings in Mesopotamia from around 4000 BC were previously thought to be oldest.
2. The Rosetta Stone was pivotal in deciphering Egyptian hieroglyphics.
3. Effective communication relies on both verbal and nonverbal cues, with only 7% of communication coming from words according to research from 1970.