  Currently there are two competing scenarios to explain the origin of the
stellar population in globular clusters (GCs). The main difference between them
is whether or not multiple events of star formation took place within GCs. In
this paper we present the star formation history (SFH) of Cluster 1, a massive
young cluster in NGC 34 $(\sim10^7\mbox{ M}_\odot)$. We use DynBaS, a spectrum
fitting algorithm, to retrieve the SFH and find that Cluster 1 is consistent
with a single stellar population of solar metallicity with an age of $100\pm30$
Myr and a mass of $1.9\pm0.4\times10^7\mbox{ M}_\odot$. These results are in
conflict with the expectations/predictions of the scenarios that invoke
extended or multiple episodes within 30--100 Myr of the initial star-formation
burst in young massive clusters.
