Command sequence in 1 block in elisp

Question

How can i run multiple commands one after another in a single block in elisp. something like this but not precisely,

((message "first message")
  (message "second message"))

Output must be,

first message
second message

Answer 1

(progn BODY...) will evaluate BODY forms sequentially and return value of last one. (from emacs help)

(progn
 (message "first message")
 (message "second message"))