All their goods could be quickly moved to Rome itself as they were taken in barges to the city up the river tiber after slaves had transferred products from merchants
The growing season in the interior plains is roughly "five to seven months" long, although it should be noted that this is not a "rigid" timetable, and sometime the season spans beyond these limits.
Do you have any examples/options to put there?
Alan Shepard "played" golf on the moon.
The lord would provide to the vassal land from which they could make money from and in return the vassal would contribute troops to the lords army. Sometimes vassals would also pay a small fee of grain or various other goods as a sort of tax for the land.
