An expectation of one's own or another person's behavior that comes true because of the tendency of the person holding it to act in ways that bring it about is called

self-fulfilling prophecy

Explanation:

The self-fulfilling prophecy is a theory developed in 1928 by the American sociologist William Isaac Thomas. According to this theory, a prediction or expectation could result in a desired or expected outcome.

This theory suggests that an individual's actions are influenced by their beliefs. The theory is based on the principle that people make inferences about other people or events on the basis of their previous experience and knowledge.

the minoan civilization flourished in the middle bronze age on the island of crete located in the eastern mediterranean from c. 2000 bce until c. 1500 bce. with their unique art and architecture, and the spread of their ideas through contact with other cultures across the aegean, the minoans made a significant contribution to the development of western european civilization as it is known today. labyrinth-like palace complexes, vivid frescoes depicting scenes such as bull-leaping and processions, fine gold jewelry, elegant stone vases, and pottery with vibrant decorations of marine life are all particular features of minoan crete.  

so basically their unique way of ding arts, as well as architecture.