Subbotnik

Subbotnik and voskresnik (from Russian: суббо́та, IPA: [sʊˈbotə] for "Saturday" and воскресе́нье, IPA: [vəskrʲɪˈsʲenʲjɪ] for "Sunday") were days of volunteer unpaid work on weekends after the October Revolution, though the word itself is derived from суббо́та (subbota for Saturday) and the common Russian suffix -ник (-nik).

[2][failed verification] Subbotniks are mostly organized for cleaning the streets of garbage, fixing public amenities, collecting recyclable material, and other community services.

Considering that communists should not spare their health and lives for the victory of the revolution, the work is conducted without pay.

On April 12, 1969, to celebrate the 50th anniversary of the first Subbotnik, the Soviet Union revived the concept and millions of citizens volunteered for extra work at least as late as 1971.

[citation needed]In Czechoslovakia, a similar kind of work was known as Action Z (Akce Z), from Czech word zvelebování, "improvement", referring to the typical activities from garbage removal to housing construction.