CHRONOLOGY

• – External slave trade is outlawed.

• – Southern legislatures enact slave codes.
• – Southern intellectuals fashion a systematic defense of slavery.

• – Southern slaves number approximately two million.

• – Arkansas is admitted to Union as slave state.

• – Cotton accounts for more than 60 percent of nation’s exports.

• – Texas and Florida are admitted to Union as slave states.

• – Southern slaves number nearly four million, one-third of South’s population.