MMC was eliminated on 2014/04/22 because it used the Kimoto Gravity Well (KGW) which is subject to Time Warp attack as explained here. MMC was moved back to the list on 2014/05/01 as KGW has been patched and there will be a hard fork.
Release Date: 2013/12/14
Algorithm: Momentum with SHA512
Total supply: 10,000,00 in the first 2 years, 2% inflation thereafter
Block Time: 6 minutes
Block Reward: 280 MMC, 5% reduction every 1680 blocks
Difficulty Retarget: One block with the Kimoto ‘Gravity Well’
GPU Advantage Calcs