What can you infer about Roman society based on the first law from Table XI, “Marriages should not take place between plebeians and patricians?”

You can infer that their social hierarchies were very strict. The law shows how they liked to keep the poorer people with the poor and the richer with the rich, rather than possibly allow them to intermingle and mix. The fact that it's the first law on Table XI also shows how important such a law was to them.

500 books can be produced by one man and a printing press within 5 months, while a copyist can only produce one in the same amount of time

length of the cultivating season was not a problem of new england agriculture