Harriet Tubman was born a slave in Maryland around 1820. She escaped to the North in 1849, but she immediately returned to the South to help other slaves escape. Doing this was no easy task. Tubman used the Underground Railroad, which was neither a railroad nor actually underground. It was a loose network of individuals and houses sympathetic to the abolitionist cause. These people would house the escaped slaves and send them on to the next "station," so slaves could gradually make their way north. Tubman's work became even more dangerous after Congress passed the Fugitive Slave Act in 1850. This act required citizens of any state, slave or free, to assist in the capture and return of runaway slaves. Tubman also served for the Union during the Civil War. She worked as a spy behind Confederate lines, Which of these best describes the relationship between Harriet Tubman and the Union Army?​

the founder of the byzantine empire and its first emperor, constantine the great, moved the capital of the roman empire to the city of byzantium in 330 ce, and renamed it constantinople.

the byzantine empire (the eastern roman empire) was distinct from the western roman empire in several ways; most importantly, the byzantines were christians and spoke greek instead of latin.

constantine the great also legalized christianity, which had previously been persecuted in the roman empire. christianity would become a major element of byzantine culture.

constantinople became the largest city in the empire and a major commercial center, while the western roman empire fell in 476 ce.

as emperor, constantine enacted many administrative, financial, social, and military reforms to strengthen the empire. the government was restructured and civil and military authority separated. a new gold coin, the solidus, was introduced to combat inflation. it would become the standard for byzantine and european currencies for more than a thousand years. as the first roman emperor to claim conversion to christianity, constantine played an influential role in the development of christianity as the religion of the empire. in military matters, the roman army was reorganized to consist of mobile field units and garrison soldiers capable of countering internal threats and barbarian invasions. constantine pursued successful campaigns against the tribes on the roman frontiers—the franks, the alamanni, the goths, and the sarmatians, and even resettled territories abandoned by his predecessors during the turmoil of the previous century.

the answer is :

transatlantic