How many party systems has the united states had since 1789?

Around 530 a.d., emperor justinian organized a group of legal scholars to collect and organize all roman law into written form. the justinian codex was created because justinian wanted to strengthen his large empire with

What do you think was a drawback to this method of calculating distance

Kublai khan honored his mongol heritage by: a)marring only one wife b)praying facing mecca five times a day c)slaughtering ten chinese officials every year d)building a large enclosed hunting ground at shangdu,his summer palace