Anniversaries Stamp Thematic on WOPA+
Anniversaries
| Prominent Armenians - 100th Anniversary of Ghukas Chubaryan |
| Issued: 04.07.2023 |
| ›Armenia |
| 850th Anniversary of the Death of Saint Nerses Shnorhali |
| Issued: 04.07.2023 |
| ›Armenia |
| Serbia - USA, 100 Years of Hollywood |
| Issued: 04.07.2023 |
| ›Serbia |
| The 10th Anniversary of Croatia's Accession to the European Union |
| Issued: 01.07.2023 |
| ›Croatia |
| 160 Years Abolition of Slavery 1863-2023 |
| Issued: 29.06.2023 |
| ›Curacao |
| 150 Years of Metrology in Serbia |
| Issued: 28.06.2023 |
| ›Serbia |
| Anniversaries of the Archives |
| Issued: 19.06.2023 |
| ›Hungary |
| Visegrad, Royal Seat for 700 Years |
| Issued: 19.06.2023 |
| ›Hungary |
| 50 Years of the Death of Pablo Ruiz Picasso |
| Issued: 16.06.2023 |
| ›Spain |
| Lithuania 100 Years in ITU |
| Issued: 16.06.2023 |
| ›Lithuania |
| 75 Years since the Founding of Mathematical Society of Serbia |
| Issued: 15.06.2023 |
| ›Serbia |
| 100th Anniversary of the Mirko Vesovic Economics Secondary School |
| Issued: 14.06.2023 |
| ›Montenegro |
| 150th Anniversary of the Latvian Song Festival, Latvijas Pasts |
| Issued: 09.06.2023 |
| ›Latvia |
| 100 Years of the Death of Joaquín Sorolla |
| Issued: 30.05.2023 |
| ›Spain |
| Portuguese Catholic Scouting (CNE) 100th Anniversary |
| Issued: 27.05.2023 |
| ›Portugal |
| 200th Anniversary of the Birth of Dr. Ante Starcevic (C) |
| Issued: 25.05.2023 |
| ›Croatia |
| 100 Years - The Little Chapel Part 2 |
| Issued: 24.05.2023 |
| ›Guernsey |
| 550 Years Since the Birth of Nicolaus Copernicus |
| Issued: 22.05.2023 |
| ›Serbia |
| 100 Years of the Gelle Fra |
| Issued: 16.05.2023 |
| ›Luxembourg |