| Fun fact, the conquer of Constantinople was prophesized in the sahih hadith (authentic saying of the Prophet) [1]. Another fun fact, it took about 800 years, or four Islamic caliphates before the event happened in the Ottoman Caliphate era, after Rashidun, Umayyad and Abbasid Caliphates [2]. And another fun fact, one of the prophet trusted sahabat namely Abu Ayyub al-Ansari was involved in the very first campaign of the First Arab Siege of Constantinople during the Rashidun Caliphate [3]. He died during the event in his old age of over 90 and become the patron saint for Istanbul, Turkey. His tomb/mosque was the official inauguration place for almost all of the Ottoman Caliphs [4]. He also famously hosted Muhammad in his house for several months during the migration or Hijrah to Yathrib (modern Madinah), where Hijrah date is the start of Islamic calender. [1] Muhammad Al Fatih – The Sultan who did the impossible: https://onepathnetwork.com/history/the-military-genius-of-mu... “Verily you shall conquer Constantinople. What a wonderful leader will her leader be, and what a wonderful army will that army be!” [Ahmad, al-Musnad] [2] Fall of Constantinople: https://en.wikipedia.org/wiki/Fall_of_Constantinople [3] Abu Ayyub al-Ansari: https://en.wikipedia.org/wiki/Abu_Ayyub_al-Ansari [4] Eyüp Sultan Mosque: https://en.wikipedia.org/wiki/Ey%C3%BCp_Sultan_Mosque |