page_title: Jean Baptiste François Joseph de Warren
hierarchical_section_title: Jean Baptiste François Joseph de Warren
caption_attribution_description: John Warren (1769-1830) as a boy.
context_page_description: Jean Baptiste François Joseph de Warren or John Warren was an army captain and later Lieutenant Colonel with Her Majesty's 33rd Regiment of Foot, East India Company in India, surveyor and amateur astronomer. While working as a surveyor in the Great Trigonometrical Survey he rediscovered what became the Kolar Gold Fields and in later life he documented Indian astronomy and time-keeping in his book Kala Sankalita.
context_section_description: Jean Baptiste François Joseph de Warren or John Warren (21 September 1769 – 9 February 1830) was an army captain and later Lieutenant Colonel with Her Majesty's 33rd Regiment of Foot, East India Company in India, surveyor and amateur astronomer. While working as a surveyor in the Great Trigonometrical Survey he rediscovered what became the Kolar Gold Fields and in later life he documented Indian astronomy and time-keeping in his book Kala Sankalita.
caption: Portrait as a boy
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