Complex sentence: The faithful began to travel in pilgrimage to the site, and on 6 August 1918, with donations from the public, a small chapel was begun, built from rock and limestone and covered in tile.
Split into simpler sentences: The faithful began to travel in pilgrimage to the site. On 6 August 1918, with donations from the public, a small chapel was begun, built from rock and limestone and covered in tile.