Treaty of Hudaybiyya
Ten miles from Mecca at a place called Hudaybiyya, the Meccan Quraysh tribe stopped the pilgrims and attempted to turn them back. Parleys between the two groups finally led to the "Peace of Hudaybiyya", or Treaty of Hudaybiyya whereby the Muslims would be allowed to make pilgrimage to Mecca not that year but in the following year. The Peace also put into place a truce which was to have lasted ten years.
The Quraysh were true to their word. The Muslims were allowed into Mecca the following year to perform a three day pilgrimage.
This event was seen as a triumph for the Muslims and a sign that they had reached parity with their enemies, the Quraysh of Mecca.