Every founder has a first follower, and the first follower is usually harder to be than the founder. Nanak had the certainty of his own experience. His sister had only him: a younger brother who would not settle to a trade, who gave away the family's money, who alarmed his father and puzzled the village. She looked at all of that and concluded, before any evidence the world would accept, that something extraordinary was happening. Sikh tradition therefore gives Bibi Nanaki a title of quiet enormity. She was the first Sikh.

A Sister at Talwandi

Nanaki was born, traditionally in 1464, to Mehta Kalu, a village revenue official, and Mata Tripta, at Talwandi in the Punjab plains, the town now called Nankana Sahib. Her brother followed some five years later, in 1469. She is said to have been given her name because she was born at her maternal grandparents' home, in keeping with the Punjabi custom, and her brother's name echoed hers.

The accounts we have of their childhood come from the janamsakhis, the traditional life narratives of Guru Nanak compiled after his death. They are devotional literature rather than documentary history, and they should be read as the community's memory of what mattered rather than as a chronicle. What they consistently record is a bond between the two children of that household, and a sister who did not share her father's exasperation.

That exasperation was real enough. The janamsakhis tell of a boy who refused the sacred thread ceremony because it could not be made of compassion and contentment; who was sent out with money to make an honest bargain and spent it feeding hungry ascetics, calling that the true bargain; who let the family's buffaloes wander while he sat absorbed. To Mehta Kalu these were the failures of a son. To Nanaki they were something else.

Sultanpur Lodhi

Nanaki was married young, as was ordinary for the period, to Bhai Jai Ram, who held a post in the administration of Daulat Khan Lodhi, the governor at Sultanpur Lodhi in the Doaba. It was a respectable position, and the household she moved into was comfortable.

She used it immediately for her brother. With her husband's help, Nanak was found a post at Sultanpur as keeper of the modikhana, the state granary and stores. It is easy to skip past this arrangement as domestic housekeeping. It was in fact the decision that gave the world Guru Nanak's early adulthood: years of honest employment, marriage to Mata Sulakhani, the birth of his two sons, and long hours before dawn spent bathing in the Kali Bein rivulet and singing.

The best-loved detail of her care belongs to this period. Nanak needed an instrument to accompany his singing, and Nanaki is said to have given him the money for a rabab, the stringed instrument played thereafter by his lifelong companion Bhai Mardana. Every shabad the two of them carried across northern India and beyond began with a sister's gift.

The Disappearance

At Sultanpur, traditionally in 1499, Nanak went to bathe in the Bein and did not come out. His clothes were found on the bank. For three days he was missing, and the town concluded he had drowned. Daulat Khan's men searched the water and found nothing.

The janamsakhis record that Nanaki alone refused the conclusion. She insisted her brother was not dead. When he returned on the third day, he was silent for a time, and then spoke the sentence that opens Sikh history: there is no Hindu, there is no Muslim. He gave away what he had and prepared to leave on the long journeys, the udasis, that would occupy the next two decades.

Recognising the Light

Sikh tradition holds that Bibi Nanaki understood who her brother was before he ever said so, and it uses a specific word for what she saw: the divine light, the jot. She is described as recognising it in him in childhood, and the recognition is what earns her the description of first Sikh. Not the first convert, because there was as yet nothing to convert to. The first person to see.

There is something deliberately ordinary about how the tradition frames her faith. She did not receive a vision or perform a miracle. She was a married woman in a provincial town who fed her brother, defended him to their father, funded his instrument, and believed him. Sikh teaching, which insists that spiritual life belongs inside the household and not outside it, could hardly ask for a cleaner illustration.

Departure

Nanaki is traditionally said to have died at Sultanpur Lodhi in 1518, with her husband dying shortly before or after her; accounts differ on the sequence and on the precise year. The tradition holds that Guru Nanak came to her at the end, and that she had asked him to. He outlived her by roughly two decades, dying at Kartarpur in 1539.

Her house at Sultanpur Lodhi is commemorated today by a gurdwara, and pilgrims visiting the shrines associated with Guru Nanak's years there include it in the circuit. Institutions across Punjab and the diaspora carry her name, notably Sikh women's colleges and hospitals, and Sikh women's organisations invoke her as a founding figure.

Why She Matters Now

It would be possible to tell the story of Sikhism entirely through Gurus and battles and never mention her, and for a long time popular retellings did roughly that. The correction has been worth making, and not only for reasons of fairness.

Bibi Nanaki represents a specific and difficult kind of faith: belief in someone before they have been proved right, sustained against the judgement of everyone with authority in your household. Nanak walked out into the world with a companion, a rabab and an idea. Behind him, in a town in the Doaba, was the person who had made all three possible and never asked for a line in the story.