The history of the Roman Empire can seem overwhelming, with so many important events and long periods to remember. A simple timeline helps make sense of Rome’s rise and eventual change, showing the most important events that influenced not just Rome, but much of Europe and beyond. This article breaks down the long story of Rome into main periods and key moments, making it easier to follow and understand why this civilization was so important to later cultures.
Roman Empire Timeline Simplified
Why Use a Simplified Timeline?
A basic timeline is helpful because it gives a clear view of the main steps in Rome’s history. The city of Rome was founded in 753 BC and the Empire lasted over 1,000 years, ruling big parts of Europe, Asia, and North Africa. There is just too much information to remember it all, so breaking it into main stages helps us see the big picture and not get lost in small details.
It’s like planning a trip: you look for the major stops, not every single street. This simple timeline shows the main “highways” of Roman history-major periods and important events-so you can understand the story, even before looking deeper into the details.
Main Periods of Roman History
Roman history can be split into a few main periods, each with big changes in how Rome was run and how people lived. These include the city’s mythic start and early kings, the Republic and its end, the rise and height of the Empire, and the crisis and fall of the Western Empire. The year 476 AD is when the Western Roman Empire is said to end, but the Eastern Empire continued for centuries after.
The change from one period to the next was not always sudden. Often, it happened over time because of conflicts, new leaders, and changes in how Rome was governed. Knowing these stages helps explain how Rome changed over the centuries and why its ideas and systems lasted so long.
Period | Years | Main Events |
---|---|---|
Monarchy | 753-509 BC | Legendary founding, ruled by kings |
Republic | 509-27 BC | Run by elected leaders, ends with rise of emperors |
Empire | 27 BC-AD 476 (West) | Ruled by emperors, West falls in 476 |
Byzantine Empire | AD 330-1453 (East) | Continuation in the East until fall of Constantinople |
Rome’s Foundation and The Monarchy (753-509 BC)
753 BC: The Founding of Rome
Rome’s story starts with legend in 753 BC. The story says twin brothers, Romulus and Remus, were left by the river Tiber, then cared for by a she-wolf and raised by a shepherd. After a fight, Romulus killed Remus, became the first ruler, and gave the city his name. While this is just a story, archaeologists found early villages on the hills of Rome going back to around 1,000 BC. This mix of stories and some facts gave Romans a strong sense of identity from the beginning.
Early Roman Kings
After the legendary founding, Rome was run by kings for around 240 years. Most of what we know about these kings comes from legends and later writings. There were said to be seven kings in total. These rulers helped set up Rome’s first laws, armies, and basic ways of life. The era of kings gave the city its first structures, but finally ended when the last king was forced out.

The Roman Republic (509-27 BC)
509 BC: Start of the Republic
In 509 BC, Romans replaced kings with a new government where elected leaders shared power. This was the Roman Republic. Instead of one person in charge, rich families (patricians) designed a system of laws and offices so no single leader would have all the power. Over time, regular citizens (plebeians) got a bigger voice, but it took many struggles to get there.
338 BC: The Latin War and Roman Control of Italy
From 341 to 338 BC, Rome fought the Latin War against neighboring groups. After winning, Rome kept these groups from making deals with others, which helped Rome stay in control and allowed it to grow across Italy. This was a big step towards Rome’s later expansions.
264-146 BC: The Punic Wars
Rome’s fight with Carthage, called the Punic Wars, was a key moment. There were three Punic Wars:
- First Punic War (264-241 BC) – Rome won Sicily.
- Second Punic War (218-201 BC) – Hannibal led elephants over the Alps and seriously threatened Rome. Eventually, Rome won again.
- Third Punic War (149-146 BC) – Rome destroyed Carthage completely and became the strongest power in the Mediterranean.
133-27 BC: Political Problems and Civil War
Rome became very powerful, but the Republic was hurt by fights between groups and leaders. From 133 BC, there were power struggles, big slave revolts (like the one led by Spartacus in 73 BC), and civil wars between famous leaders, including Julius Caesar. Caesar became the only leader in 45 BC, but he was killed a year later. Instead of fixing things, his death caused more chaos. The Republic could not be saved, setting the stage for emperors to take over.

The Roman Empire (27 BC-AD 284)
27 BC: Augustus Becomes First Emperor
After years of war, Octavian (later called Augustus) became the first Roman Emperor in 27 BC. He claimed to restore the old ways, but kept most of the power for himself. This started a long era of peace and progress called the Pax Romana (“Roman peace”). Augustus made many changes to government, the army, and the city itself, firmly setting up the Empire.
AD 14-68: Julio-Claudian Emperors
After Augustus came emperors like Tiberius, Caligula, Claudius, and Nero. This family controlled Rome for over 50 years. Claudius took Britain, and the time saw big building projects. But there were also bad rulers and disasters, like the fire under Nero in 64 AD. Nero’s death led to a quick change of rulers in just one year.
AD 69-96: Flavian Dynasty
Vespasian, Titus, and Domitian (the Flavian emperors) restored order after Nero. Vespasian started the Colosseum, finished by his son Titus. During this time, the eruption of Mount Vesuvius (79 AD) buried the city of Pompeii. Domitian’s rule ended badly, and he was killed in 96 AD.
AD 96-180: The Five Good Emperors
This period had some of Rome’s best rulers: Nerva, Trajan, Hadrian, Antoninus Pius, and Marcus Aurelius. These emperors were chosen because they were capable, not related, and this brought stability, growth, and expansion.
- Trajan grew the empire to its biggest size in 117 AD.
- Hadrian built Hadrian’s Wall in Britain.
- Marcus Aurelius fought tough wars and dealt with plague, but kept the empire steady.

Empire in Crisis and Decline (AD 235-476)
AD 235-284: The Crisis of the Third Century
This was a rough time for Rome. Many emperors rose and fell quickly, the army fought at the borders, the economy was weak, and disease spread. Attacks from outside and power struggles inside almost caused Rome to fall apart. The country was deeply unstable during these years.
AD 284: Diocletian and Splitting the Empire
Diocletian became emperor in 284 AD and made big changes. He created a system where four leaders (the Tetrarchy) ran the empire in two main parts-East and West. This change helped for a while, but also made the split between East and West permanent. Diocletian also tried new laws and tried to stop rising prices. He attacked Christians as part of his rule, hoping to keep order.
AD 312: Constantine and the Rise of Christianity
Constantine took power after a civil war. In 312 AD, he won a battle after putting Christian symbols on his soldiers’ shields. He became the first Roman Emperor to support Christianity and moved the capital east to Byzantium (later called Constantinople) in 330 AD. Later, Christianity became the official religion of Rome under Theodosius I in 380 AD.
AD 410: The Sack of Rome
By the early 400s, Rome’s Western Empire was under attack by Germanic tribes. In 410 AD, the Visigoths, led by Alaric, captured and looted Rome. This was the first time in 800 years that enemy forces took the city, showing that Rome’s power was failing.

AD 476: End of the Western Roman Empire
In 476 AD, the last Western Roman emperor, Romulus Augustulus, was removed by Odoacer, a Germanic leader. This is the usual date given for the “fall of Rome.” The process took many years, as the empire slowly lost power and territory. Even so, Eastern Rome continued on in Constantinople.
Year | Event |
---|---|
753 BC | Legendary founding of Rome |
509 BC | Start of the Republic |
264-146 BC | Punic Wars |
45 BC | Julius Caesar becomes dictator |
27 BC | Augustus becomes first Emperor |
117 AD | Empire reaches largest size |
235-284 AD | Crisis of the Third Century |
284 AD | Diocletian reforms and divides the Empire |
312 AD | Constantine supports Christianity |
410 AD | Rome sacked by the Visigoths |
476 AD | Last Western Emperor removed |
1453 AD | Fall of Constantinople |
What Happened After the Fall of Rome?
The Eastern Roman (Byzantine) Empire
Even though the Western Empire ended, the Eastern Roman Empire, also called Byzantium, lasted until 1453 AD. Its capital was Constantinople. This part held on to Roman law and culture and mixed it with Greek ideas and Christianity. The Byzantine Empire protected Europe from invaders and shaped many ideas that would later appear in the Middle Ages and after.
1453 AD: Fall of Constantinople
The “last” day of the Roman Empire came in 1453, when the Ottoman Turks captured Constantinople. This ended a line of Roman rule that began with the ancient city and lasted for about 2,200 years. This event pushed many scholars west and helped start the Renaissance and the Age of Exploration, changing Europe forever.
Common Questions about the Roman Empire Timeline
How Long Did the Roman Empire Last?
If you count from the founding of Rome in 753 BC to 476 AD (the fall of Western Rome), that’s over 1,200 years. The Eastern Roman Empire (Byzantium) continued until 1453 AD, so in some ways, Roman rule lasted nearly 2,200 years. This long history shows how Rome was able to change and survive over a very long time.
What Are the Most Important Events in Roman History?
Some of the main turning points include the legendary founding in 753 BC, the start of the Republic in 509 BC, the Punic Wars, Julius Caesar’s rule and death, Augustus becoming emperor in 27 BC, Constantine’s support for Christianity in 312 AD, the sack of Rome in 410 AD, and the end of the Western Empire in 476 AD. Each of these changed the direction Rome was going and influenced lots of people after.
When Did Rome Change into an Empire?
Rome became officially an empire in 27 BC when Octavian (later Augustus) became the first emperor. Before that, even powerful leaders like Julius Caesar still claimed to follow the Republic, but Augustus took the title and duties of emperor, creating a new government where one person held all the main power. This started the long era known as the Roman Empire.
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