Kidney infection (pyelonephritis) is a type of urinary tract infection (UTI) that generally begins in your urethra or bladder and travels to one or both of your kidneys. A kidney infection requires prompt medical attention.
Trajan is one of Romeâs most outstanding emperors. Under his rule, the empire reached its largest extent. He was remembered as a successful soldier-emperor who presided over the greatest military expansion in Roman history, leading the empire to attain its maximum territorial extent by the time of his death.
In its territorial peak after the conquest of Dacia by Trajan, the Roman Empire controlled approximately 5 900 000 kmÂ² (2,300,000 sq.mi.) of land surface, thereby being one of the largest ancient empires, exceeded only by the Persian Empire and the Han Empire.