Mezue ahịrịokwu na-esonụ: Amụrụ nso Prostějov, Czechoslovakia ka Anna Porizkova na Jiri Porizka, Porizkova bụ afọ atọ mgbe ya na-emegide Soviet dissident nne na nna gbapụrụ Czechoslovakia ka Lund, Sweden na-agbanahụ 1968
Ndị Warsaw Pact wakporo obodo anyị. Ọ bụ nne nne ya lekọtara ya. Ndị ọchịchị Czechoslovak ekweghị ka nne na nna ya weghachite ya, na agha a na-esote na-agbasawanye na mgbasa ozi Sweden, na-eme ka Porizkova bụrụ ihe kpatara célèbre.