sentences:  One observation that appears to apply globally is that a significantly larger number of boys than girls attend boarding school and for a longer span of time.The practice of sending children, particularly boys, to other families or to schools so that they could learn together is of very long standing, recorded in classical literature and in UK records going back over 1,000 years.In Europe, a practice developed by early medieval times of sending boys to be taught by literate clergymen, either in monasteries or as pages in great households.