These questions are requiring the years for these events 1) last christianity city fell to muslim forces; end of the crusades 2) crusaders capture jerusalem and defeat the muslims 3) charlemagne empire is divided into 3 parts 4) phillip iv meets with the estates-general (france's first parliament) you so much!

1). The year in question is 1291. This was the year in which the Muslims managed to take Acre after a huge siege and was taken as the de facto year when the crusades ended, even though there were some small attempts at crusading, but these were unsuccessful and never at such a big scale as the main crusades were.

2) The year in question here is 1099. This was the year when the first crusade ended when Jerusalem was captured by the Crusaders and the Kingdom of Jerusalem was formed. All the wars that followed revolved around Jerusalem as Muslims tried to retake it while Crusaders tried to keep it as a Kingdom

3) The year when they split into three kingdoms was 843. This was according to the treaty of Veradun in which the territories where Louis the Pious, Charlemagne's son, ruled. It was split into West Francia, East Francia, and Middle Francia. It was split among three brothers of the Carolingan Dynasty.

4)  The correct answer for 4 should be 1302. This was the year in which Philip the Fair, or Philip the IV, met with the estates-general to get their advice on how problems in the country could be solved since they were big and dire in wake of his father who warred with others and had numerous problems with the Pope.

Because broadest terms allows the law flexibility depending on changing society and circumstances.