The factor that most contributed to the development of roman civilization was

The factor that most contributed to the development of Roman civilization was their well developed political system coupled together with their disciplined army which was gaining victory after victory lead to a great success in the development of the Roman civilization. 

The case was a u.s. supreme court decision that defined the scope of the u.s. congress's legislative power and how it relates to the powers of american state legislatures. the dispute in mcculloch involved the legality of the national bank and a tax that the state of maryland imposed on it.