"Today efforts are being made to obfuascate the existing definition of nationalism. The nationalism draws on reliable history and not just on anyone's fantasy about the past.
"Critical enquiry as we all know is essential to the advancing of knowledge, it is expected of the university to critically enquire into what public may claim this knowledge to be," she said in her address to the students at JNU.
Thapar's lecture titled "History and Nationalism: Then and now" was part of the "nationalism teaching" series which are being conducted at JNU which is caught in a row over a February 9 event.
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"Nationalism doesn't exist on one identity, it is all inclusive. National history of course has its moments of joy, it goes to the past and golden age and utopian age but whatever national identities superseded existing identities, if it is inclusive it is generally much healthier but if it pretends to be much exclusive then it could be a disaster," she said.
Thapar, an Emeritus Professor at JNU, referred to herself as "dinosaurs of JNU" talking about how she joined university in 1970.
"Various theories have been put about origin of Aryans. Max Mueller said they came for central Asia. Dayanand Saraswati said they came from Tibet. Tilak as we all know was much more adventurous and suggested the Arctic regions. When it became fashionable in the 1920s to talk about Aryans being indigenous to India. It was little embarrassing to have Tilak talking about Arctic circle and someone had the bright idea of saying that in those days in Vedic times, the north pole was actually located in Bihar," she said, with a touch of humour.
depressed" since the last one month over "attempts at breaking JNU" she was feeling much better now.
Tracing the early history of nationalism, Thapar went on to differentiate between inclusive and exclusive nationalism by giving examples of African nationalism and German Nationalism during the 1930s respectively.
"Nationalism has a lot to do with understanding your society and finding your identity as member if that society. History is essential to a national ideology, but it has to be a shared history. It cannot be a history based on one identity, but has to be all inclusive.
"Interpretation of history came to be based on the two-nation theory and from this perspective Hindu, Muslim antagonism became a given."
The theory of an Aryan race, she said, was also useful in projecting that India had a single history, one that she added, posed problems to it's believers when the Indus Valley Civilisation was discovered.
The historian then went on to describe how nationalism and communalism became important concepts for the Muslim League and Hindu Mahasabha which still used concepts like two-nation theory.