The Continuum of Care (CoC) Program is a federal program designed to promote a communitywide commitment to the goal of ending homelessness by providing funding for permanent housing, supportive services, rapid re-housing, and permanent supportive housing for homeless individuals, youth and families.
Strongholds are underground structures found in Minecraft after Beta 1.8, only three strongholds spawn per map. Most Strongholds have several Mob Spawners, an abundance of three types of Stone Brick, Stone Slabs, Cobblestone and Chests with randomized loot.
You don't make an End Portal, you find it. They're hidden in Strongholds and to locate one you'll need to make some Eye of Ender - Minecraft Wiki. Holding an Eye of Ender in your hand and right-clicking will make it fly up in the air and show you in which direction you'll have to travel in order to find the End Portal.