| Sunday | Monday | Tuesday | Wednesday | Thursday | Friday | Saturday |
| Day not set Jozef Szalatynski Death - May 1965 (24 year anniversary) Zbigniew Szwarc + Private Marriage - May 1953 (36 year anniversary) | 1 Stanisław Biernat Birth - 1 May 1930 (59 year anniversary) Jan Bratkowski Death - 1 May 1879 (110 year anniversary) | 2 Edward Zapałowicz + Maria Rybak Marriage - 2 May 1931 (58 year anniversary) | 3 Piotr Rybak Death - 3 May 1967 (22 year anniversary) Eugeniusz Kubik Birth - 3 May 1939 (50 year anniversary) | 4 Rafal Pieniądz Birth - 4 May 1981 (8 year anniversary) Czesław Gruszka Birth - 4 May 1949 (40 year anniversary) | 5 | 6 Maria Bratkowska Death - 6 May 1879 (110 year anniversary) Stanislaw Bratkowski Birth - 6 May 1809 (180 year anniversary) |
| 7 Julia Rybak Birth - 7 May 1908 (81 year anniversary) | 8 | 9 | 10 | 11 Anna Rybak Death - 11 May 1979 (10 year anniversary) Katarzyna Władysława Bohaczek Death - 11 May 1955 (34 year anniversary) Rosa Chargaff Birth - 11 May 1878 (111 year anniversary) | 12 | 13 |
| 14 Gertruda Kozłowska Birth - 14 May 1924 (65 year anniversary) | 15 Greta Chargaff Birth - 15 May 1910 (79 year anniversary) | 16 Jonas Holzmann Death - 16 May 1959 (30 year anniversary) Henryk Szwarc Birth - 16 May 1944 (45 year anniversary) Zygmunt Trocha Birth - 16 May 1925 (64 year anniversary) | 17 Jan Bratkowski Birth - 17 May 1856 (133 year anniversary) | 18 | 19 Jan Szwarc + Władysława Sagan Marriage - 19 May 1929 (60 year anniversary) | 20 |
| 21 Felicitas Dingmann Birth - 21 May 1898 (91 year anniversary) | 22 AntoniRybak Birth - 22 May 1871 (118 year anniversary) | 23 Kazimierz Smoliński Birth - 23 May 1940 (49 year anniversary) | 24 | 25 | 26 | 27 |
| 28 | 29 Roman Jan Rybak Death - 29 May 1979 (10 year anniversary) | 30 | 31 |
