Sri Lankan Constitution of 1972
... that the Sri Lankan Constitution of 1972 changed the country's name to Sri Lanka from the old name Ceylon, and proclaimed it as an independent republic?
... that the <b id="mwCBM"><a href="./Sri_Lankan_Constitution_of_1972" id="mwCBQ" rel="mw:WikiLink" title="Sri Lankan Constitution of 1972">Sri Lankan Constitution of 1972</a></b> changed the country's name to <a href="./Sri_Lanka" id="mwCBU" rel="mw:WikiLink" title="Sri Lanka">Sri Lanka</a> from the old name Ceylon, and proclaimed it as an independent republic?