User:Amirmohammadnourizadeh

Khorram rooz ( Persian expression for happy day) is the first day of dey month(the 10th month of Persian calendar) and because the name of the day and month become the same,which is also the name of god,this day was celebrated in the ancient Iran.It was a big day full of religious and non-religious traditions .Zoroastrians specially Persians,respect this day very much and call it “dey dadar jashn”. Abu rayhan al-biruni says the month dey,is also called “khor” and the first day of it is called “khorerooz”. dey is an adjective from the infinitive “da”,meaning giving and creating and is used for god,who is a giver and creator.in avestan scripts,usually this word is used for “ahura mazda”(ahura mazda means god).if you pay attention to the names of the days of the months,you see that the 8th,15th and 23rd of every month is named “dey”.for distinguishing these,each day is called with the name of the day after it.for example dey to azar,dey to mehr,dey to din.therefore in dey month,four days are named after god.people like henrik samuel nyberg and arthur emanuel christensen believe this classification and naming means that there were weeks in avestan calendar or at least they have divided months to 4 pieces when a day with the name of god came.but this belief is criticized vastly. The last night of azar(the last month of fall) is the longest night of the year and the last day of azar is the shortest day of the year.the followers of the mithraic mysteries consider the first day of dey,the birthday of the sun,because from this day on,the sun begins to persist in the sky longer each day and the nights shorten and the days elongate.ancient iranians used to start their years with the first day of winter or the day of the sun and the month of god and it was their nowrooz or the first day of their year.