and Scotish kings acctually took hold of the English throne in 1604 not the other way round
well pretty much the other way round, in reality. It's what might be called in modern corporate parlance a 'reverse takeover' - actually fairly typical of the things done by Elizabeth Tudor, probably one of the most brilliant politicians of all time. So the monarch of Scotland having been forced to abdicate in favour of her 13 month old son was beheaded due to 'treason' against a country that wasn't hers, her son was raised to be a protestant and thus eligible for the English succession (his father having been murdered in unexplained circumstance when he was less than a year old), and the two countries remained separate until the act of Union in 1707, when the two countries became a single country, the Kingdom of Great Britain. So, strictly, England is no longer a 'country', it ceased to be in 1707 when it subsumed Scotland.