The main events include God's call to Gideon, Gideon tearing down his father's altar to Baal, his asking for signs with the fleece, reducing the army size, and finally defeating the Midianites.
In the Gideon Old Testament story, the key events are quite interesting. It starts with God choosing Gideon, a man from a not - so - prominent background. Gideon was then tasked with leading the Israelites against the Midianites. He began by taking a bold step of demolishing his father's altar to Baal, which was a significant act of faith. Next, he asked for signs from God through the fleece. This was his way of being sure of God's call. God then reduced his army to a very small number. This was to prove that victory would be by God's power, not by the strength in numbers. Eventually, Gideon led this small army to a great victory over the Midianites, which was a huge turning point for the Israelites.