How has the water clock changed over time?

Unlike other states of its time rome treated most of the peoples it conquered? Why and how did the Renaissance spread to Northern Europe? The two most widespread philosophies during the Roman Empire were? What does pervious mean? What country does the surname Van Zyl come from? What were Peter Tchaikovsky's greatest accomplishments? What primary means of printing from the 1400s until the 21st century was the printing press who invented this? Where would a medieval cook sleep? How many years since 1976 till 2011? What day of the week was August 26 1945? Did medieval woman have maids? Roman borrowed much of its architecture from? How did justian die? Where did the troubadours live in the medieval times? What country in the western hemisphere is the most roman catholic? The Palantine Church of Charlemagne is thought to have been based on the church of? Did Ancient Romans celebrate birthdays? When were Romans first alive? Which of Rome's internal problems do you think were the most serious? A person whose views differ from others?