Ryanair was formed in 1985.
Ryanair change their fares daily. The best time to book is around 2-3 months in advance usually; as this is when the sale tickets are available.
Ryanair typically releases its flight schedules several months in advance, often around late summer or early fall. For Christmas flights in 2016, the schedules would likely have been made available in late 2015 or early 2016. To find specific release dates, checking Ryanair's official website or subscribing to their updates during that period would have been useful.
They now have been released.
Ryanair was created in 1985.
Ryanair has 303 aircraft.
They now have.
No Ryanair is an Irish owned airline.
I personally know a little bit about Ryanair, however I would recommend checking out the wikipedia article on Ryanair that i have attached below. It will give you more precise information.
Ryanair fly to Palermo & Trapani.
No, smoking is not allowed on any Ryanair flights.
The prefix for Ryanair flights is FR.
Ryanair's entire fleet does currently does not charge to use the toilet, however it has been spoken about but Boeing can't find a way of installing a coin machine on the fleet.