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...one of his friends, he travelled to [[England]] for advanced studies. But the details of this period are not known. Probably, he also spent some time i ...girls and a branch school in [[Edirne]]. Another novelty he introduced was the first school newspaper in Istanbul.<ref>[http://www.istanbullisesi.k12.tr/O ...

{{About||the calendar of religious holidays and periods|Liturgical year|this year's Greg ...cal" or "solar" year]] that is determined by the Earth's revolution around the Sun. ...

<!-- Please note the background of Tusi is constantly vandalized by ips- that is why it is sourc | caption = Iranian stamp for the 700th anniversary of his death ...

{{Short description|Period of cultural flourishing from 786 to 1258}} | footer = From top to bottom and left to right: [[al-Zahrawi]], [[al-Biruni]], [[Ibn al-Na ...