The Interrail was created in 1972 as a form of rail pass with reduced prices and with great flexibility, the routes would be anywhere in Europe as long as it has a train station. The Interrail over time gained fans especially among young Europeans that wanted to known Europe. The rail passes allow users to travel on free transit train (2nd category) for a several number of countries and still offering substantial discounts on some sea crossings in countries like Italy and Greece. Be aware that the ticket does not include the cost of any supplements, reservation of seats and couchette reservations. A supplement is an additional fee to travel in fast trains or trains passing across great distances.On the price of the pass, it is beneficial for those with less than 26 years and travel in groups is quite usual. The Interrail ticket may be purchased from 2 months in advance and can be purchased at train stations.Some history