https://webresources.gu.se/RSS_Services/Calendar_dynamic_RSS?categoryNames=&calendarIds=1765672708&fromSiteNodeId=515494&languageId=100000&startDateTime=2020-04-07&endDateTime=2020-04-07&tipFriend=true&tipUrl=http%3A%2F%2Fsprak.gu.se%2FAktuellt%2Fkalendarium%2F%3FstartDateTime%3D2019-08-23%26endDateTime%3D2019-08-23%26siteNodeId%3D515494%26languageId%3D100000%26categoryAttribute%3DeventTypes%26categoryNames%3Dtemadag The top 25 events