Anniversaries Stamp Thematic on WOPA+
Anniversaries
| Estonian Students Society 150 |
| Issued: 07.04.2020 |
| ›Estonia |
| Estonian Internal Security Service 100 |
| Issued: 06.04.2020 |
| ›Estonia |
| The National Grand Lodge of Romania, 140 Years Since its Establishment |
| Issued: 03.04.2020 |
| ›Romania |
| Miklos Zrinyi was Born 400 Years Ago |
| Issued: 02.04.2020 |
| ›Hungary |
| Zenthe Ferenc Born 100 Years Ago |
| Issued: 02.04.2020 |
| ›Hungary |
| WWII - 75 Years |
| Issued: 01.04.2020 |
| ›New Zealand |
| 250th Birth Anniversary of William Wordsworth |
| Issued: 01.04.2020 |
| ›Alderney |
| 900 Years Engelberg Monastery |
| Issued: 31.03.2020 |
| ›Switzerland |
| 100 Years Swiss Federation of Live-Stock Farming of the Hérens Breed |
| Issued: 31.03.2020 |
| ›Switzerland |
| 125 Years National Library |
| Issued: 31.03.2020 |
| ›Switzerland |
| 150 Years Swiss Fire Brigade Association |
| Issued: 31.03.2020 |
| ›Switzerland |
| 2000 Years Solothurn Town |
| Issued: 31.03.2020 |
| ›Switzerland |
| 100th Anniversary of Pro Infirmis |
| Issued: 31.03.2020 |
| ›Switzerland |
| 125 Years Swiss Football Association |
| Issued: 31.03.2020 |
| ›Switzerland |
| 25th Anniversary of the Spanish Federation of Coeliac Associations (Face) |
| Issued: 30.03.2020 |
| ›Spain |
| Anniversaries - 90th Ann Fraternidad-Muprespa |
| Issued: 30.03.2020 |
| ›Spain |
| Anniversares, Events - Alexandru Loan Cuza 200th Ann of his Birth |
| Issued: 20.03.2020 |
| ›Romania |
| Author Anniversaries |
| Issued: 19.03.2020 |
| ›Norway |
| 125 Years of Cinematography |
| Issued: 19.03.2020 |
| ›Bosnia and Herzegovina - Republic of Srpska |
| 500th Ann of the Navigation of the Strait of Magellan |
| Issued: 18.03.2020 |
| ›Portugal |
| 75 Years of United Nations |
| Issued: 16.03.2020 |
| ›Belgium |
| 25 Years UNESCO World Heritage |
| Issued: 10.03.2020 |
| ›Luxembourg |
| 175th Birthday of Gabriel Lippmann |
| Issued: 10.03.2020 |
| ›Luxembourg |