Prophet Muhammad, God bless him and grant him peace, instructed Muslims to celebrate only two holidays: Eid al-Fitr, at the end of Ramadan, and Eid al-Adha, during the annual Hajj. Some Muslims, in imitation of Christian practice, celebrate the Mawlid an-Nabi, the birthday of Prophet Muhammad, God bless him and grant him peace, but this cannot be viewed as an Islamic celebration.
The date of birth of Prophet Muhammad in Islamic calendar is:12 Rabi al Awal (Mawlid an Nabi for Sunni Muslims), and17 Rabi al Awal (Mawlid an Nabi for Shia MuslimsTwelvers)
Eid, Ramadan and Mawlid al-Nabi Shia Muslims celebrate also Eid Ghadir that is the day prophet Muhammad SAWW declared Imam Ali a.s. as Caliph and leader of Muslims after prophet at Ghadir Khum.
To express their happiness about the Birth of Muhammad, peace be upon Him.
I'm thinking, along the ideals of biology, which is what I am hoping you are shooting for, that the answer there could be lashes, makeup like eyeshadow, or zits.
Muslims
If it is for justice yes
Sunni Muslims Shia Muslims
Muslims still must respect and co-operate with non-muslims.
Mehdi is a name affiliated with Muslims, especially Shiite Muslims.
Muslims are Islam people. So,the founder of Muslims is Mohammad.
Muslims of course mosques are for Muslims Muslims own moques
Muslims are well known. Muslims are a religious group.