HI is most noticeable during the summer and winter. The main cause of the urban heat island effect is from the modification of land surfaces. Waste heat generated by energy usage is a secondary contributor. As a population center grows, it tends to expand its area and increase its average temperature.
Theodosius the Great, was Roman emperor from 379 to 395. He is best known for making Christianity the state religion of the Roman Empire and great architecture projects in Constantinople.