Yellala Falls
... that the Yellala Falls on the Congo River were reached in 1485 by Portuguese explorers whose engraved stone commemorating their visit was only discovered in 1911?
... that the <b id="mwDf4"><a href="./Yellala_Falls" id="mwDf8" rel="mw:WikiLink" title="Yellala Falls">Yellala Falls</a></b> on the <a href="./Congo_River" id="mwDgA" rel="mw:WikiLink" title="Congo River">Congo River</a> were reached in 1485 by Portuguese explorers whose engraved stone commemorating their visit was only discovered in 1911?