added one event

Author: gkydon

source/Conference_ 3rd Congress of Greek Mathematicians.md

@@ -0,0 +1,11 @@
+---
+title: "3rd Congress of Greek Mathematicians"
+subTitle: ""
+image:
+startDate: 2026-06-29
+endDate: 2026-07-04
+researchFields: All
+location: Athens, Greece
+link: https://hms.gr/third-congress-of-greek-mathematicians-tcgm-2026-june-29-july-4-2026-athens-greece/
+type: conference
+---