This article records tradition as it has been passed down and reported. Its sources are not yet part of the atlas's verified catalogue.
Between 1 and 10 June 1984, the Indian Army assaulted the Golden Temple complex at Amritsar, Sikhism's holiest site, aiming to remove an armed militant group that had fortified itself inside. The operation reached into the heart of the faith's central shrine, a site no earlier Indian government had moved against with military force.
Casualty figures from the assault are sharply disputed. The government's own initial White Paper reported 83 security force deaths and between 4,712 and roughly 5,000 civilian deaths inside the complex, while independent human rights organisations, counting the surrounding area as well, estimate the true total exceeded 10,000, a gap this account states rather than resolves. Four months later, Prime Minister Indira Gandhi was assassinated by her own Sikh bodyguards, and her death set off widespread anti-Sikh violence across India that killed thousands more in the days that followed.
What this changed for Sikhism's spread was not where Sikhs lived but how the faith remembered the year 1984 itself. The assault on the Golden Temple and the violence that followed Indira Gandhi's assassination became a defining wound in Sikh political memory, one carried forward by a diaspora already established in Britain and Canada and now bound together, wherever its members lived, by a single shared grievance.