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Saturday is the day of the week between Friday and Sunday. No later than the 2nd century, the Romans named Saturday diēs Sāturnī ("Saturn's Day") for the planet Saturn, which controlled the first hour of that day, according to Vettius Valens. The day's name was introduced into West Germanic languages and is recorded in the Low German languages such as Middle Low German satersdach, saterdach, Middle Dutch saterdag (Modern Dutch zaterdag) and Old English Sæternesdæġ, Sæterndæġ or Sæterdæġ. Names of the days of the week Between the 1st and 3rd centuries AD, the Roman Empire gradually replaced the eight-day Roman nundinal cycle with the seven-day week. The astrological order of the days was explained by Vettius Valens and Dio Cassius (and Chaucer gave the same explanation in his Treatise on the Astrolabe). According to these authors, it was a principle of astrology that the heavenly bodies presided, in succession, over the hours of the day. The association of the weekdays with the respective deities is thus indirect, the days are named for the planets, which were in turn named for the deities. The Germanic peoples adapted the system introduced by the Romans but glossed their indigenous gods over the Roman deities in a process known as interpretatio germanica. In the case of Saturday, however, the Roman name was borrowed directly by West Germanic peoples, apparently because none of the Germanic gods were considered to be counterparts of the Roman god Saturn. Otherwise Old Norse and Old High German did not borrow the name of the Roman god (Icelandic laugardagur, German Samstag). In the Eastern Orthodox Church, Saturdays are days on which the Theotokos (Mother of God) and All Saints are commemorated, and the day on which prayers for the dead are especially offered, in remembrance that it was on a Saturday that Jesus lay dead in the tomb. The Octoechos contains hymns on these themes, arranged in an eight-week cycle, that are chanted on Saturdays throughout the year.

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Names of the days of the week

In many languages, the names given to the seven days of the week are derived from the names of the classical planets in Hellenistic astronomy, which were in turn named after contemporary deities, a system introduced by the Sumerians and later adopted by the Babylonians from whom the Roman Empire adopted the system during Late Antiquity. In some other languages, the days are named after corresponding deities of the regional culture, beginning either with Sunday or with Monday.

Sabbath in Christianity

Sabbath in Christianity is the inclusion in Christianity of a Sabbath, a day set aside for rest and worship, a mandatory practice described in the Ten Commandments in line with God's blessing of the seventh day (Saturday) making it holy, "because on it God rested from all his work that he had done in creation". The practice was associated with the assembly of the people to worship in synagogues on the day known as Shabbat. Early Christians, at first mainly Jewish, observed the seventh-day Sabbath with prayer and rest, but gathered on the first day, Sunday, for communal worship.

Shani

Shani (शनि, ), or Shanaishchara (शनैश्चर, ), refers to the divine personification of the planet Saturn in Hinduism, and is one of the nine heavenly objects (Navagraha) in Hindu astrology. Shani is also a male Hindu deity in the Puranas, whose iconography consists of a black figure carrying a sword or danda (sceptre) and sitting on a crow. He is the god of karma, justice, and retribution, and delivers results depending upon one's thoughts, speech, and deeds.

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