  We introduce the SMC in space and time, a large coordinated space and
ground-based program to study star formation processes and history, as well as
variable stars, structure, kinematics and chemical evolution of the whole SMC.
Here, we present the Colour-Magnitude Diagrams(CMDs) resulting from HST/ACS
photometry, aimed at deriving the star formation history (SFH) in six fields of
the SMC. The fields are located in the central regions, in the stellar halo,
and in the wing toward the LMC. The CMDs are very deep, well beyond the oldest
Main Sequence Turn-Off, and will allow us to derive the SFH over the entire
Hubble time.
