Occurrence of Attributes in Original Text

The text related to the cultural heritage 'Samarra Archaeological City' has mentioned 'Construction' in the following places:
Occurrence Sentence Text Source
The city was further developed under Caliph al-Mutawakkil, who sponsored the construction of lavish palace complexes, such as al-Mutawakkiliyya, and the Great Mosque of Samarra with its famous spiral minaret or Malwiya, built in 847.
During the 20th century, Samarra gained new importance when a permanent lake, Lake Tharthar, was created through the construction of the Samarra Barrage, which was built in order to prevent the frequent flooding of Baghdad.
Criterion (iv):xc2xa0 The buildings of Samarra represent a new artistic concept in Islamic architecture in the Malwiya and Abu Dulaf mosques, in the form of a unique example in the planning, capacity and construction of Islamic mosques by comparison with those which preceded and succeeded it.