This study reanalyzes spectra from eight stars in the oldest globular cluster in the Milky Way galaxy, NGC 6522, which has a metallicity one tenth that of the sun. The reanalysis reveals large overabundances of the light s-process elements yttrium and strontium relative to iron in the stars. This pattern, along with the previously observed overabundances of the heavy s-process elements barium and lanthanum, is best explained by enrichment from fast-rotating massive stars early in the universe, before low-mass asymptotic giant branch stars could contribute. Fast-rotating massive stars may have been able to boost s-process yields by four orders of magnitude through rotational mixing, affecting the