The Events Calendar includes a setting that allows you to add events to the same loop WordPress uses to display published blog posts. You can find this setting on the Events > Settings > General screen.
Once enabled, this setting tells WordPress to combine event posts and default posts in the same main loop.
When including events in the main loop The Events Calendar overrides WordPress default behavior and sorts events by start date instead of the post publish date.
This extension allows you to change the sorting condition by selecting the option under Events->Settings->General