If you see Islam from a historical perspective, yes. Mohammed founded Islam in Mecca. However, according to Islamic theology, Islam has existed since the Creation of the Universe and, therefore, did not start in Mecca.
YES.
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Islam began by start of universe creation. However, Islam per God Quran revelation to prophet Muhammad began in Makkah (or Mecca). Refer to question below.
All the Prophets (May peace be upon them all) had been preaching Islam. The last Prophet of Islam Hazrat Muhammad (May peace be upon him) was born in Mecca (Makka). So, in a way, you may say that it began in Mecca, Saudi Arabia.
Some people from Madina went to Makka to perform Hajj. The holy Prophet Hazrat Muhammad (SAW) met them secretly and invited them to embrace Islam. These were about six persons. (Bait-i-Uqba -1). The next year about seventy persons embraced Islam and offered the Muslims to migrate from Makka to Madina. They pledged that they would sacrifice even their lives to protect the Muslims migrating to Madina. (Bait-i-Uqba-2) The holy Prophet Muhammad (SAW) advised the Muslims to migrate to Madina. He himself, accompanied by his most devout and dearest friend Hazrat Abu Bakr (RAU), migrated to Madina in the 13th years of his Prophet-hood. THen Islam spread in Madina and within 8 years Makka was conquered by The holy Prophet Muhammad (SAW).
I believe Islam started in mecca but the Muslims were pushed out to Medina where it started to gain support, then they returned to mecca and eventually took control.
Mecca
The holy book of islam is "Quran" . Makkah (mecca) is the holy city for beleivers of Islam (muslims)
The city of Mecca and the city of Madina are both holy cities of Islam.
Mecca is the most holy site of Islam.
The motto of Mecca is 'Holiest city in Islam'.
http://en.wikipedia.org/wiki/Mecca
Hegira started in 622 AD and when Muhammad had to move from Mecca to Medina to preach Islam.
mecca is the place Islam emerged and started and was the city of prophet Muhammad (PBUH)
Mecca (Makka), the holiest city in Islam is located in the Kingdom of Saudi Arabia.
Mecca is important in Islam, it has no signifiance in Buddhism
Islam calendar is lunar calendar and its start day is the day of prophet Muhammad (peace upon him) migration from Makkah (or Mecca) to AlMadinah (or Medina).