The Englishman, Spaniard and Moroccan met in a bar

Spaniard - When are you going to return Gibraltar to it's rightful owner?
Englishman - You can talk.  Don't you occupy, Ceuta and Melilla?  What do the Moroccans think of that?
Spaniard - Ah but Ceutra and Melilla have been Spanish territory for over 500 years.  The land is truly Spain. As Spanish as any other Spanish city.   Gibraltar came into British hands by act of conquest in 1704, when Spain was weak. In the timescale of history, that's recent.
Englishman - But have you heard about Wikipedia?  you can find all  the details there.  For example, Ceuta was a Portuguese possession until 1662, then was handed over to Spain because of Portugal's relative weakness, and eagerness not to get into a fight with you.  So Ceuta became Spanish 36 years before Gibraltar became British.  What is 36 years in the timeline of history?
Moroccan - Hang on, I'm here you know.  Yes, Ceuta and Melilla should be Moroccan again.  There is no doubt, for moral rather than economic reasons.  They are colonial outposts of an empire.  How would you like a colonial outpost in your territory?  They are out-dated anomalies from the past.
Spaniard - Yes well we do know what it feels like.  Gibraltar is an uncomfortable aberration on our underbelly.
Moroccan - so perhaps Gibraltar should come back under Moroccan rule, as it was in 1463?

Ceuta -Arab/Berber until 1415, Portuguese until 1668, then Spanish.  (253 years Portuguese, 351 years Spanish)
Melilla - Spanish from 1497 (522 years Spanish)
Gibratar - Spanish from 1463. British from 1704 (241 years Spanish, 315 years British)