They gave us Some months and Some planets.
Architecture to a degree. By the times the Romans came to Britain they were just about on the out, so not as much remained as it could have.
Through their aqueducts.
Extracts from stinging nettles were used for medicinal purposes.
Latin.
Yes and it was their own Latin language that they spoke and wrote in.
Britain was invaded by the Romans.
The Romans ruled Britain for about 350 years.
No they were not. The Romans left Britain in the late 5th century.
The Romans ruled over Britain from 43 CE - 410 CE.
The Romans brought sugar to Britain. Before the Romans, people in Britain used honey, and other sweet foods as sweeteners.
The Romans definitely brought gladiatorial combat and chariot racing to Britain. Any other entertainment activity that could be held in an amphitheater was also introduced, judging by the number of arenas being discovered in G.B. today. You can be assured that in around 400 years of occupation, the Romans also brought their theater troops and various games.
The Romans arrived in Britain in 55AD.