To view the log, navigate to the Recent log messages page (http://example.com/admin/reports/dblog) You can see things like when a content is deleted, created, by who…..
https://drupal.stackexchange.com/questions/48645/how-to-show-admin-reports-dblog-in-terminal-cli https://www.drupal.org/docs/8/core/modules/dblog/overview