What did factory owners do to prevent unions from forming?

They used force to end union activities ensure that all the union members would not have any chance of promotion. Or, they can put the union members' name on 'blacklist' that would be shared to other companies. This will make it really hard for them to find new jobs if they decided to quit their current company.

Explanation:

because of its location and commercial importance, atlanta was used as a center for military operations and as a supply route by the confederate army during the civil war. therefore, it also became a target for the union army. general william tecumseh sherman and his troops captured the city in 1864.

"the sepoy rebellion was the result of many, many influences and stressors on the cultures of india living under british rule. in britain, it's called the sepoy mutiny on the indian mutiny, but in india, it's called the first war of independence.

the main reason is concerned to the british paramountcy , the belief in british   dominance in india political, economic and cultural life had been introduced in india about 1820."

"they were forced to grow crops that benefited the colonizing nations instead of feeding their own people."