About the Author

Matthew LaCroix is an author, researcher, documentary filmmaker, podcast host, and Mystery School teacher dedicated to exploring humanity’s forgotten past, ancient wisdom, consciousness, and the deeper relationships connecting civilization, nature, and the human experience. 

For more than two decades, his work has focused on lost civilizations, megalithic architecture, ancient texts, symbolic traditions, and recurring knowledge systems preserved across cultures.

His research has taken him throughout Türkiye, Egypt, Cambodia, Peru, Bolivia, and beyond, where field investigations have revealed remarkable parallels in sacred architecture, advanced stonework, and ancient symbolism that continue to challenge conventional understandings of history.

Matthew is the author of The Missing Key: Ancient Code of a Lost Civilization and has appeared in documentaries and television series including Ancient Civilizations, Beyond Belief, and The UnXplained. 

He is also the creator and host of the Lost Civilizations Podcast, a research-driven series exploring ancient sites, archaeological evidence, forgotten histories, and the deeper questions surrounding civilization’s origins.

He is the founder of the Lost Civilizations Database (LCD) and Ancient Code Database (ACD), initiatives dedicated to documenting, comparing, and preserving important archaeological evidence and recurring symbolic patterns across ancient cultures.

Through the Ayanis Legacy Mystery School, Matthew teaches ancient wisdom, consciousness, lost civilizations, philosophy, and personal transformation, with an emphasis on critical thinking, direct observation, and restoring a deeper understanding of humanity’s relationship with nature, knowledge, and the larger systems we are part of.

My mission statement:

"To objectively explore humanity’s forgotten past, recover what was lost, and help restore ancient wisdom for future generations".

-Matthew LaCroix