Yes - but which society created all these similarly designed forts 100s of years ago, across the world? They weren't thrown up by a small group of pilgrims - t

Yes - but which society created all these similarly designed forts 100s of years ago, across the world? They weren't thrown up by a small group of pilgrims - they were brilliantly engineered and took effort to make. But I didn't learn anything about these castles at school. And we did do castles in history - it was my favourite thing. So what are we missing or misunderstanding.