To reduce the length of your events page, you can create an events archive
In the administration bar, click on the Menu button, then select Structure
Select Main menu
Select Add link
Fill in the Required (asterisked) fields. Enter Archive in the Menu link title field and events/archive in the Path field. The Enabled box should be checked, and Events should be selected in the Parent link.
Click the Save button.
Go to your Events page.
At the bottom of the page, click Customize this page.
Note: If you see the Boxton layout option without a side panel or column, you will need to change the page layout first to add a column or sidebar.
Click the plus symbol to add a new Pane; add either a second column or a sidebar by clicking on the + sign.
Click Events from the menu on the left
Choose to archive your events by clicking on the appropriate green Add button.
Choose Archive for a basic archive of events.
If you are using the taxonomy (classification) feature on your events, you can choose the Archive summary by category option.
Choose Archive summary by year to have your events grouped together by year as in the image below.
Remember to click the Save button.