The next AHA annual meeting will be held at Chicago, 3-6 January 2019. Deadline for submitting paper proposals is 15 February 2018. For details, see AHA webpage. The ADHS meets jointly with the AHA. Details for submitting to the ADHS appear on a subsequent post.
After Chicago, the schedule for AHA annual meetings (always early in January) are as follows:
New York City, 2020
New Orleans, 2022
San Francisco 2024
New York City 2025