<P> The names of the days of the week in many languages are derived from the names of the classical planets in Hellenistic astrology , which were in turn named after contemporary deities , a system introduced in the Roman Empire during Late Antiquity . In some other languages , the days are named after corresponding deities of the regional culture , either beginning with Sunday or with Monday . In the international standard ISO 8601 , Monday is treated as the first day of the week . </P>
<P> The names of the days of the week in many languages are derived from the names of the classical planets in Hellenistic astrology , which were in turn named after contemporary deities , a system introduced in the Roman Empire during Late Antiquity . In some other languages , the days are named after corresponding deities of the regional culture , either beginning with Sunday or with Monday . In the international standard ISO 8601 , Monday is treated as the first day of the week . </P>
who gave the names to the days of the week
who gave the names to the days of the week
Roman Empire during Late Antiquity
Roman Empire during Late Antiquity