What is the significance of removing Old Major’s Skull, banning the term “Comrade,” and changing the name of the farm to “Manor”?

What is the significance of removing Old Major’s Skull, banning the term “Comrade,” and changing the name of the farm to “Manor”?

What is the significance of removing Old Major’s Skull, banning the term “Comrade,” and changing the name of the farm to “Manor”?
What is the significance of removing Old Major’s Skull, banning the term “Comrade,” and changing the name of the farm to “Manor”?