Explanation
From the RG1 blade, click Deployments. You see a history of deployment for the resource group.
Reference:
https://docs.microsoft.com/en-us/azure/azure-resource-manager/templates/template-tutorial-create-first-template?
Through activity logs, you can determine:
* what operations were taken on the resources in your subscription
* who started the operation
* when the operation occurred
* the status of the operation
* the values of other properties that might help you research the operation On the Azure portal menu, select Monitor, or search for and select Monitor from any page
2. Select Activity Log.
3. You see a summary of recent operations. A default set of filters is applied to the operations. Notice the information on the summary includes who started the action and when it happened.
Reference:
https://docs.microsoft.com/en-us/azure/azure-resource-manager/management/view-activity-logs