The term 'Forty-Niner's Stake' refers to the CLAIM of gold miners during the California Gold Rush of 1849. The term 'CLAIM' is a five letter word which is used to describe the right of a miner to mine on a particular piece of land. The Forty-Niners were the first wave of gold miners who arrived in California during the Gold Rush and they staked their claims to the land in order to have exclusive rights to mine for gold.