February 5, 1869: Welcome Stranger discovered. The Welcome Stranger is the largest alluvial gold nugget ever found. It was discovered in Australia by prospectors John Deason and Richard Oates, who received £ 9,381 for it. (In today's money, it would be worth about $ 3,766,950.) At the time it was found, there were no scales large enough to handle it, so it had to be broken on an anvil into three pieces for weighing.