From the SCS:
The Erich S. Gruen Prize Committee invites all graduate students in North America to enter the second annual competition for the best graduate research paper on multiculturalism in the ancient Mediterranean. This year the prize will be a cash award of $500.
The deadline for submissions is October 8, 2021. You can find the eligibility and application instructions, and read more about the prize and Professor Gruen's work on this page.