when muhammed got messages from the angel Gabriel that later got put in the holy book called the Qu'ran
his mom disowned him
At the age of 40
Prophet Muhammad (peace upon him) started preaching in Makkah (Mecca) in year 610 AD (year of Quran start of revelation by God).
It was not night but day and this day was first day of prophet-hood of prophet Muhammad saw .
Shaikh Isma'il Haqqi (died 1137 A.H.) while elucidating this verse in his commentary Ruh-ul-Bayan, writes: "Asim reads the word Khatam with a vowel stress on the letter ta which means the instrument of stamping and sealing, just as 'Printer' is the machine which imprints. The connotation of the word is that the Holy Prophet (PBUH) was the last of all prophets and God has sealed the office of prophethood through his agency. In Persian the same meaning will be expressed by the term 'Mohar Paighambran'. The seal of Prophets i.e., his (Muhammad's) advent sealed the door of prophethood and the line pf prophets ended in him. Other reciters pronounce the word Khatim with the vowel point under the letter ta which means to say that Muhammad (PBUH) was the one who sealed the doors of prophethood. In Persian the same meaning will be expressed by the term 'Mohar Konindai Paighambran,' 'Sealer of the prophets,' so both ways the word Khatam bears one and the same meaning........Henceforth the Ulema of the Ummah of Muhammad(PBUH) will inherit only spiritual eminence from him. The inheritance of Prophethood is extinct, for Muhammad(PBUH) has sealed the office of Prophethood for all time to come. The appearance of Hadrat Isa (PBUH) after Muhammad(PBUH) is not a contradiction of the finality of Muhammad's prophethood. The term Khatam-un-Nabiyyin makes it clear that no one will be appointed a prophet after Muhammad(PBUH
Muhammad did various jobs before his prophethood. He worked as a shepherd, and as a merchant. He used to rear goats and went on trading caravans as a merchant.He came from a noble family and was known as The Truthful and The Trustworthy.
The gap between the first revelation of the Quran to Prophet Muhammad and the second revelation is believed to be a period of time during which there were no new revelations. It is a significant moment as it marked the beginning of prophethood for Muhammad.
by being lame
He was referred to the seal of the prophethood because he was the last prophet. He brought the true religion to man after it had been lost among misinterpretations of the works of previous prophets. Just as people used to used wax seals to prove a letter was genuine, so too was Muhammad God's way of declaring this new religion the defining faith.
It is the first, and most important, pillar of the five Islam pillars. Refer to related questions below for more information.
Muhammad peace be upon him
Since Muhammad was a Muslum, no, he would not call himself a Christian.