The way i'd look at it is to use a mySQL database with events and dates, then use a script (php or similar) to query the database for relevant info and generate the final page content from that.
There may be other ways....
Huawei P10 review
1995-2015: How technology has changed the world in 20 years
How VR is being used to simulate space
New iPad, iPhone SE & Red iPhone 7 on sale now
Synology invites you to visit them at Insomnia on 26th – 29th August. Book your tickets now and visit Synology.