What is a verbirate?

Why did they invented the wheel? What is the formal name of the middle ages? What is cindys real name? Who was a Mauryan ruler who built new roads and hospitals for people and animals? How did European rulers centralize power and control nobility? What advantages and disadvantages were there to being a priest in the medieval times? Which city was the starting point of all explorations? Who developed the calendar system you use today? What was the great western cattle trail used by cowboys to move cattle? What time period is the 16th century? How did the crusades affect the people that fought in the war? The lessons of late Han China and late Roman Empire are that the decline of a civilization? What is cedementation? In which millennium will the year 67445 AD? Why did the Goths move into the Roman empire in the AD 300's? Why didnt the Christians help the Roman empire Army during it fall? Inventions made in 1600s to 1700s? Who fought with the knights in the first crusade? As roman emperor Constantine moved the empires capital to Byzantium and was the first to believe in what? What was the manciple role in society in the middle ages?