cultural traditions 1 [vynechat] dejiny civilizácie 1 [vynechat] discoveries and inventions 1 [vynechat] folk songs 1 [vynechat] history of civilization 1 [vynechat] hudobné nástroje 1 [vynechat] intelektuálny život 1 [vynechat] intellectual life 1 [vynechat] kultúrne tradície 1 [vynechat] middle ages 1 [vynechat] musical instruments 1 [vynechat] myslenie 1 [vynechat] objavy a vynálezy 1 [vynechat] stredovek 1 [vynechat] technical development 1 [vynechat] technický rozvoj 1 [vynechat] thought and thinking 1 [vynechat] ľudové piesne 1 [vynechat]