The Sumerian civilisation was the first modern human civilisation. These people invented many things such as:
one of the things are toilets.
One city of Sumer was Bulhakia
they did invent things but know one knows
inventors invent things everywhere home, office, or a lab.
One of the main things that 'inspired' him was a compass. Albert Einsteins father showed him one when he was young and he was simply fascinated. Although it might not be the thing that made him 'invent' it was something that 'inspired' him.
He didn't invent electricity, but a means to use it with things like the light bulb that differed from his closest competitor Tesla. No one invented electricity.
He didn't invent it, but did draw things out. Never made one of the things he thought about.
you can invent if you really want you can invent by things that are not expensive..right?
selfish people prefer to invent things which doesn't hurt them.
Many many things people can invent.
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Firstly empires are not people and therefore they do not invent things. Secondly inventing things is what people do, whether Roman or not.