Zoomed Vinay Special · First-person editorial
Before Greenwich, the World's "Center of Time" Was a City in India
Every map on Earth today measures longitude from a line through London. Fourteen hundred years before that line existed, Indian astronomers were already using a different line — through a city called Ujjain — to do exactly the same job. Let's build this up completely from zero: what a prime meridian even is, why anyone needs one, and why this one mattered.
The point of view
Every map on Earth today measures longitude from a line through London. Fourteen hundred years before that line existed, Indian astronomers were already using a different line — through a city called Ujjain — to do exactly the same job. Let's build this up completely from zero: what a prime meridian even is, why anyone needs one, and why this one mattered.
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Aryabhata
Wikipedia — secondary general reference
Original citation linked to this published story. Its downloadable Source record is still completing editorial publication.
What is the Prime Meridian, and why is it in Greenwich?
Royal Museums Greenwich
Original citation linked to this published story. Its downloadable Source record is still completing editorial publication.
Aryabhata and Axial Rotation of Earth — A Brief History
Indian Academy of Sciences, Resonance — Amartya Kumar Dutta
Original citation linked to this published story. Its downloadable Source record is still completing editorial publication.
IANA Time Zone Database — Asia (tzdb)
Internet Assigned Numbers Authority (IANA)
Original citation linked to this published story. Its downloadable Source record is still completing editorial publication.