After 'The Battle of the Cowshed' was concluded, Snowball was awarded ' Animal Hero: First Class.'
Shortly after 'The Battle of the Cowshed,' Mollie, one of the horses, was seen with a human and soon enough was forgotten at 'Animal Farm.'
Snowball suggests building a windmill to make the work at the farm easier, but Napoleon doesn't like that idea, so Snowball is chased off the farm by the 9 "missing" puppies. Napoleon had taken them in secret so he could educate and train them.
Later on Napoleon claims that building the windmill was his idea and that Snowball stole it from him. But what the animals on the farm didn't understand is why Napoleon was so against it when Snowball had first recommended it.