Plots of land are physical things you can claim as property. Stacks of money are government creations in a sense, but I don't believe that without government creating fiat money, there would be no such thing as money.
And how do you claim as property a plot of land larger than you can patrol and guard yourself in a day? You can't. That's why enclosure is a fairly recent development historically speaking.
I'd recommend reading Debt: The First 5,000 Years by David Graeber if you want
to understand how debt, money and states interconnect. I'm not saying you can't have money without states, I'm saying states are mechanisms to grant and enforce monopolies (i.e. exclusive access to and control of resources). If you want to maintain these systems without states, you'd end up with something resembling feudalism, which is just a more direct way to enforce property claims through violence.
I'd recommend reading Debt: The First 5,000 Years by David Graeber if you want to understand how debt, money and states interconnect. I'm not saying you can't have money without states, I'm saying states are mechanisms to grant and enforce monopolies (i.e. exclusive access to and control of resources). If you want to maintain these systems without states, you'd end up with something resembling feudalism, which is just a more direct way to enforce property claims through violence.