If your thinking Mohammad wasn't all that big in his lifetime you be exactly right. He simply wasn't !!!.
Power of the Sword
623 - Battle of Waddan
623 - Battle of Safwan
623 - Battle of Dul-Ashir
624 - Muhammad and converts begin raids on caravans to fund the movement.
624 - Zakat becomes mandatory
624 - Battle of Badr
624 - Battle of Bani Salim
624 - Battle of Eid-ul-Fitr and Zakat-ul-Fitr
624 - Battle of Bani Qainuqa
624 - Battle of Sawiq
624 - Battle of Ghatfan
624 - Battle of Bahran
625 - Battle of Uhud. 70 Muslims are killed.
625 - Battle of Humra-ul-Asad
625 - Battle of Banu Nudair
625 - Battle of Dhatur-Riqa
626 - Battle of Badru-Ukhra
626 - Battle of Dumatul-Jandal
626 - Battle of Banu Mustalaq Nikah
627 - Battle of the Trench
627 - Battle of Ahzab
627 - Battle of Bani Quraiza
627 - Battle of Bani Lahyan
627 - Battle of Ghaiba
627 - Battle of Khaibar
628 - Muhammad signs treaty with Quraish.
630 - Muhammad conquers Mecca.
630 - Battle of Hunsin.
630 - Battle of Tabuk
632 - Muhammad dies.
Not exactly small potatoes with Islamic conquest all the way up to Tabuk in his lifetime.
With his fellow cutthroats hardly skipping a beat after.
632 - Abu-Bakr, Muhammads father-in-law, along with Umar, begin a military move to enforce Islam in Arabia.
633 - Battle at Oman
633 - Battle at Hadramaut.
633 - Battle of Kazima (into the Persian Empire)
633 - Battle of Walaja
633 - Battle of Ulleis
633 - Battle of Anbar
634 - Battle of Basra,
634 - Battle of Damascus
634 - Battle of Ajnadin.
634 - Death of Hadrat Abu Bakr. Hadrat Umar Farooq becomes the Caliph.
634 - Battle of Namaraq
634 - Battle of Saqatia.
635 - Battle of Bridge.
635 - Battle of Buwaib.
635 - Conquest of Damascus.
635 - Battle of Fahl.
636 - Battle of Yermuk.
636 - Battle of Qadsiyia.
636 - Conquest of Madain.
637 - Battle of Jalula.
638 - Battle of Yarmouk.
638 - The Muslims defeat the Romans and enter Jerusalem.
638 - Conquest of Jazirah.
639 - Conquest of Khuizistan and movement into Egypt.
641 - Battle of Nihawand
642 - Battle of Ray in Persia
643 - Conquest of Azarbaijan
644 - Conquest of Fars
644 - Conquest of Kharan.
644 - Umar is murdered. Othman becomes the Caliph.
647 - Conquest of the island of Cypress
644 - Uman dies and is succeeded by Caliph Uthman.
648 - Campaign against the Byzantines.
651 - Naval battle against the Byzantines.
654 - Islam spreads into North Africa
656 - Uthman is murdered. Ali become Caliph.
658 - Battle of Nahrawan.
659 - Conquest of Egypt
661 - Ali is murdered.
662 - Egypt falls to Islam rule.
666 - Sicily is attacked by Muslims
677 - Siege of Constantinople
687 - Battle of Kufa
691 - Battle of Deir ul Jaliq
700 - Sufism takes root as a sect of Islam
700 - Military campaigns in North Africa
702 - Battle of Deir ul Jamira
711 - Muslims invade Gibraltar
711 - Conquest of Spain
713 - Conquest of Multan
716 - Invasion of Constantinople
732 - Battle of Tours in France.
740 - Battle of the Nobles.
741 - Battle of Bagdoura in North Africa
744 - Battle of Ain al Jurr.
746 - Battle of Rupar Thutha
748 - Battle of Rayy.
749 - Battle of lsfahan
749 - Battle of Nihawand
750 - Battle of Zab
772 - Battle of Janbi in North Africa
777 - Battle of Saragossa in Spain