Old Map of India, 1875: Great Trigonometrical Survey, Bay of Bengal, Mumbai, Delhi, Kolkata beijing It is a valuable tool

It is a valuable tool for historians

Broseley (16th century): Known for its iron deposits

encapsulating a vast area of historical significance

lush gardens

Old Map of India, 1875: Great Trigonometrical Survey, Bay of Bengal, Mumbai, Delhi, Kolkata beijing It is a valuable toolThe "Index Chart of the Great Trigonometrical Survey of India" is a captivating historical artifact that captures the essence of one of the most ambitious scientific endeavors of the 19th century. Created in 1875 by the Office of the Trigonometrical Survey of India, this map meticulously details the extensive network of trigonometrical stations established across the Indian sub continent. The Great Trigonometrical Survey, initiated by the East India