Complex sentence: For centuries the city was a principal gathering place for pilgrims of the Maghreb to gather on the way to Mecca and it became known as a holy city in its own right, especially for pilgrims unable to make the long journey to the Arab Peninsula.
Split into simpler sentences: For centuries the city was a principal gathering place for pilgrims of the Maghreb to gather on the way to Mecca. It became known as a holy city in its own right, especially for pilgrims unable to make the long journey to the Arab Peninsula.