Oak cites several documents suggesting the Taj Mahal predates Shah Jahan's era, and was a temple dedicated to Shiva, worshipped by Rajputs of Agra city. For example, Prof. Marvin Miller of New York took a few samples from the riverside doorway of the Taj. Carbon dating tests revealed that the door was 300 years older than Shah Jahan. European traveler Johan Albert Mandelslo,who visited Agra in 1638 (only seven years after Mumtaz's death), describes the life of the cit y in his memoirs. But he makes no reference to the Taj Mahal being built. The writings of Peter Mundy, an English visitor to Agra within a year of Mumtaz's death, also suggest the Taj was a noteworthy building well before Shah Jahan's time.
