May 21, 1864
Brussels metropolitan area
May 21, 1855
Sint-Amands
May 21, 1901
Ghent
May 21, 1944
Aleksandrovac
May 21, 1865
Kapelle-op-den-Bos
May 21, 1984
Deerlijk
May 21, 1859
Roermond
May 21, 1986
Sambreville
May 21, 1898
Ohain
May 21, 1909
Antwerp
May 21, 1885
Ghent
May 21, 1943
Brasschaat
May 21, 1917
Liège
May 21, 1991
Bruges
May 21, 1996
Ottignies-Louvain-la-Neuve