The issue of whether or not slaves would count towards the population was a huge problem at the Constitutional Convention. Northern politicians did not want slaves to count, as this would give Southern states more power in Congress. On the other hand, Southern politicians wanted slaves to count but they did not want to give them equal rights. Ultimately, the two sides compromise by creating the Three-Fifths Compromise.
The 3/5ths Compromise stated that for every 5 slaves, 3 would count towards the population.
Besides the climate of Japan and California, they can be compared according to their land size. Japan has 377, 930km2 while California has 423,970km2. There is only a small difference in their territorial land size which makes some similarities between the two. I hope this helped.
Germany not being punished in the war would have made the nazi party more of a fringeparty