The four Janamsakhis that have survived into the modern era include the Bala, Miharban, Adi and Puratan versions, and each hagiography contradicts the other. Each of these are in three parts, each with an idealized and adulatory description of Guru Nanak. The first part covers his childhood and early adulthood. The second part describes him as a traveling missionary over thousands of miles and mythical places such as Mount Meru. The last part presents him as settled in Kartarpur with his followers. These mythological texts are ahistorical and do not offer chronological, geographical or objective accuracy about Guru Nanak's life. The Sikh writers were competing with mythological stories (mu'jizat) about Muhammad created by Sufi Muslims in medieval Punjab region of South Asia.