Which colony was ruled as a slave state for 23 years?

The Congo Free State

Explanation:

"The Congo Free State, also known as the Independent State of the Congo, was a large state in Central Africa from 1885 to 1908."

these conditions long with a short growing season made farming difficult.

explanation:

the north has a climate of warm summers and snowy cold winters. the terrain is rocky, hilly, and not good for farming.

one of the main reasons was definitely slavery. back in 1861, republican abraham lincoln was elected and ended up being a major influence in the slavery business. slavery greatly affected the texas economy because back in 1845 during the annexation of texas, slaves became a big part of the texas population. many texans that were in favor of the secession influenced groups through party ties.