Ska groups accented a subdivision after the main beats called

Explanation:

Common elements were: four-beat pattern, plus some instruments playing a very strong accent on a subdivision (even or uneven) just after each of the four beats. That accent was strong enough to be heard as if it were the main beat, creating a feeling of a delayed beat. The ska pattern is often called a hesitation beat.

explanation:

hitler's  "rise" can be considered to have ended in march 1933, after the reichstag adopted the enabling act of 1933 in that month. president paul von hindenburg had already appointedhitler  as chancellor on 30 january 1933 after a series of parliamentary elections and associated backroom intrigues.

that would be the steamboat because none of the other things are forms of transportation