Original sentence: The history of Limerick (Irish: Luimneach), the third largest city in the Republic of Ireland and one of Ireland's major cultural and industrial centres, stretches back to its establishment by the Vikings as a walled city on "King's Island" (an island in the River Shannon) in 812, and its charter in 1197
Edited sentence: The history of Limerick (Irish: Luimneach), the fourth largest city ( also known as stab city due to the large amount of crime in the city)in the Republic of Ireland and one of Ireland's major cultural and industrial centres, stretches back to its establishment by the Vikings as a walled city on "King's Island" (an island in the River Shannon) in 812, and its charter in 1197