President Lincoln waited for which of the following before issuing the Emancipation Proclamation?
1)new states to join the Union
2)the passage of the Thirteenth Amendment
3)a successful Confederate military action
4)a successful Union military action

1) new States to join the Union

seeing as no choices were provided, i'll do my best to answer it from knowledge.

job specialization promotes work ethic to the person doing the job. he/she may be strong in the arms and able to lift things, specializing him/her in a job where you lift and carry.

in the 1950s, country music came into its own before rock-n-roll took off in the 60s while jazz and classical music continued to innovate