History tells us that the Taj Mahal was built by Mughal Emperor Shah Jahan in the 17th century. But not everyone believes this.
Take, for instance, PN Oak's 1989 book Taj Mahal: The True Story. Oak claimed that the marble monument was built as a Vedic temple in 1155 before the Mughals came to India. He also suggests that Shah Jahan merely acquired the Taj from one Jai Singh. In Oak's telling, the supposed temple was built by Raja Paramdari Dev in the 12th century.
In December 2014, the Bharatiya Janata Party's Uttar Pradesh unit president Laxmikant Bajpai backed this theory and said there were documents to prove it.
Since the Bharatiya Janata Party came to power two years ago, there have been fears that the government has been trying to saffronise school textbooks under the influence of the Rashtriya Swayamsevak Sangh. As evidence of this, some have pointed out that publications produced by RSS-affiliated organisations claim that the Qutub Minar in Delhi was actually built by emperor Samudragupta and the pillar was actually called the Vishnu Stambha.
So it came as no surprise on Wednesday when a hashtag #RemoveMughalsFromBooks began trending on Twitter. Those in support of erasing centuries of India's history argued that the Mughals had caused much destruction during their reign, and had forced thousands of Hindus to convert. There was heated debate on Twitter on the subject through the day, but some chose to take the high road and respond with humour.
Here's a selection.