No, they did not. Sorry
In the West, from the 1st Century BCE to the 4th Century CE. In the East until the 15th Century CE.
The Romans didn't invent the Groma. The Greeks were using it in the 4th century BCE, after which the Etruscans and then Romans obtained the technology. Although who invented it is a matter for debate, the most likely inventors are probably the Mesopotamians, the source of many revolutionary inventions including the most basic of all inventions, the wheel, the plough and the sail. They also divided time into the sexagesimal system (base-60) that we still use to this day.
Roman currency of 2,000 years ago consisted of nearly pure silver coins, but less valuable metals were used in making coins during the 3rd and 4th century while the Roman Empire was declining.
The United States gaining its independence from Britain.
Romans continued to conquer and govern lands under their empire while Christianity in the first century continued in the ways of its founder Jesus Christ. Some historians claim a 'veil or curtain' drops over the Christian movement from late 1st century to mid 2nd century and when the religion reappears, it is quite different from that of Jesus' and His Apostle's teachings. Ascetic and other Greek philosophies began to 'assimilate into it making it more 'pagan' acceptable. Then in the early 4th century, Constantine adopted the movement as a way of solidifying control on his empire and changed it even more. Today, Jesus would not recognize many of the Christian denominations/sects.
The Asian Huns invaded in the 4th century.
They invaded Britain in the 5th century :P
Romans occupied Britain at the end of the 4th century and remained there after conquering it. They added significant changes to England's culture and language. They had a well organized government and army. Conquered by the Celts, the Romans had many battles with them and with their leader the great of Wessex Alfred the second. Finally, both Romans and the Celts got ended up by the Normans and their leader William the conqueror.
They didn't necessarily invent it but they used it predominantly around the 4th century BCE.
The Romans deployed army corps which were called legions (legio) formed by companies called centuries (centuriae). The formation of the legions changed over time. From the 6th century BC to the 4th century BC they used the phalanx formation of the Greeks. From the 4th century BC to 107 BC they used the maniples of the Samnites. From 107 BC onwards they used the cohorts.
By research i believe the Etruscans created Roman numerals these two numbers systems have similarities except they have different symbolic signs towards each other. The Etruscans did and they once ruled the Romans.
The Jutes were a Germanic people who lived in Northern Europe. They came from present day Denmark and invaded Britain in the 4th Century.
The Persian empire was long gone before the Romans arrived in the Middle East - the empire had been swallowed up by Alexander in the late 4th Century BCE. The Romans began to take over some of the western part of Asia in the 1st Century BCE.
The Roman system of numbering came into common use in the 4th century BC. Before that, they used the Greek system of numbers.
The 4th century.
The 4th century.
The 4th century.