HomeNewsIndiaIndia had its own prime meridian passing through Ujjain: New NCERT textbook

India had its own prime meridian passing through Ujjain: New NCERT textbook

No mention of caste-based discrimination, tweaks in references to B R Ambedkar's experience about the discrimination, referring to the Harappan civilisation as "Sindhu-Sarasvati" are also among the changes in the textbook developed according to a new curriculum.

July 21, 2024 / 17:45 IST
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In a departure from the past, the textbook makes multiple references to the "Sarasvati" river in the chapter pertaining to the beginning of the Indian civilisation.
In a departure from the past, the textbook makes multiple references to the "Sarasvati" river in the chapter pertaining to the beginning of the Indian civilisation.

India had a prime meridian of its own much ahead of the Greenwich meridian and it was called "madhya rekha", which passed through the city of Ujjain in Madhya Pradesh, according to a new Class-6 NCERT textbook for social science.

No mention of caste-based discrimination, tweaks in references to B R Ambedkar's experience about the discrimination, referring to the Harappan civilisation as "Sindhu-Sarasvati" are also among the changes in the textbook developed according to a new curriculum.

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"The Greenwich Meridian is not the first prime meridian. There were others in the past. In fact, many centuries before Europe, India had a prime meridian of its own! It was called madhya rekh (or 'middle line') and passed through the city of Ujjayinī (today Ujjain), which was a reputed centre for astronomy over many centuries. "Varhamihira, a famous astronomer, lived and worked there some 1,500 years ago. Indian astronomers were aware of the concepts of latitude and longitude, including the need for a zero or prime meridian. The Ujjayinī meridian became a reference for calculations in all Indian astronomical texts," the textbook reads.

In a departure from the past, the textbook makes multiple references to the "Sarasvati" river in the chapter pertaining to the beginning of the Indian civilisation.