Risorgimento: This term refers to the cultural and political movement that led up to Italian unification. It's like the box containing all those puzzle pieces waiting to be put together.
Giuseppe Garibaldi: An important figure in Italian unification who led many military campaigns. He's like an expert puzzle-solver who helped put some key pieces together.
Piedmont-Sardinia: This was a kingdom that played a crucial role in uniting Italy. It can be seen as one of the corner pieces of our puzzle, providing an essential starting point for putting everything else together.