books the first to set the hijri calendar
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# Hijri calendar
# Months of the solar Hijri calendar
# Why is the Hijri calendar called by that name?
# Hijri calendar and Gregorian calendar
# Hijri and Gregorian calendar
# Arrange the months of the Hijri calendar
# Months in the Hijri calendar
# Features of the Hijri calendar
# The importance of the Hijri calendar
# Establishment of the Hijri calendar
# Beginning of the Hijri calendar
# Islamic Hijri calendar
# Meanings of the months in the Hijri calendar
# Scheduled Hijri calendar
# Gregorian and Hijri calendar
# Converting from Hijri to Gregorian calendar
# What is the Hijri calendar based on?
# Hijri calendar until 2050 AD
# Hijri calendar end of legend
# The crescent moon and the Hijri calendar
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أول من وضع التقويم الهجري (Info)
عمر بن الخطاب رضي الله عنه.
