added history
Revert "added ops dashboad"

This reverts commit 747d07a5290e8b24d3cfe5891af0885616180da6.
Revert "added history"

This reverts commit 8defd8ed137c609cc86b3e1b111cfcd4db9f7898.
Revert "Revert "added ops dashboad""

This reverts commit 7611884d5b96f472e8c965f0b0eff5b9e4e36fdf.