Schools of thought · 1787 to now
Timeline of Thinkers
The scientists, healers and teachers who shaped how we think about frequency and the whole person. Tap any milestone to read more. Filter by evidence level to see which ideas have held up.
About quotes on this page
Many quotes passed around online aren’t found in the sources they’re credited to. For example, the line “think in terms of energy, frequency and vibration” has no known source in Tesla’s own writings. We only quote words we can trace to a source.