Agricultural products are hard to grow in northern Canada and Alaska because why

The terrain in those areas are rocking and cold wtich it a harsh enviroment for plants to grow.

most of the knowledge we have of the conflict comes from roman-jewish scholar titus flavius josephus, who first fought in the revolt against the romans, but was then kept by future emperor vespasian as a slave and interpreter.

byzantine empire is the answer i think you are looking for.

hope this : )