In 2002 the president of which country renamed all the months and most of the days of the week?

On August 10, 2002, the government of Turkmenistan adopted a law to rename all the months and most of the days of week. The names were chosen according to Turkmen national symbols, as described in the "Ruhnama", a book written by Saparmurat Niyazov, Turkmenistan's first and only President for Life.

Niyazov had renamed January after himself - calling it "Turkmenbashi" (father of the Turkmen). Instead of April there was Gurbansoltan - the name of Niyazov's mother, who was possibly born in that month. Other months were named after heroes and poets.

Four years after the change, Niyazov died in 2006. On April 23, 2008 it was reported that the cabinet of ministers of Turkmenistan discussed restoring the old names of the months and days of week. The old names were finally restored in July 2008.