In what century was Gru Nanak born?

Explanation:

Nanak, (born April 15, 1469, Rai Bhoi di Talvandi [now Nankana Sahib, Pakistan], near Lahore, India—died 1539, Kartarpur, Punjab), Indian spiritual teacher who was the first Guru of the Sikhs, a monotheistic religious group that combines Hindu and Muslim influences.

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