This website offers accurate and reliable articles to help you understand the topic.
You can search for ancient Roman artefacts, including more coins and statues, on the British Museum website here.
You can search for ancient artefacts from Rome on this website here. (This is the museum Ms Zelli used to work at!)
Similarly to BBC, this has some easy-to-read resources about Vespasian and the Roman Empire.
The school library is subscribed to World Book. This book can summarise huge chunks of information!
Videos on ClickView can help you understand the topic. These are also verified as having accurate information.
Those with a State Library QLD membership can access heaps of online resources for free, including JSTOR!