Europe enjoyed a long period of prosperity between 11th and 13th centuries. European population grew from 56.4 million in year 1000 to 78.7 million in year 1300. The idyll (if anything in medieval times was an idyll) ended abruptly between years 1314 and 1315. Many regions of Europe reported prolonged periods of rain in 1314. It rained most of the time in summer and autumn of 1314 in Great Britain.