housing discrimination in the United States
... that it was not until the Fair Housing Act of 1968 that housing discrimination in the United States became illegal?
... that it was not until the <a class="mw-redirect" href="./Fair_Housing_Act" id="mwDts" rel="mw:WikiLink" title="Fair Housing Act">Fair Housing Act</a> of 1968 that <b id="mwDtw"><a class="mw-redirect" href="./Housing_discrimination_(United_States)" id="mwDt0" rel="mw:WikiLink" title="Housing discrimination (United States)">housing discrimination in the United States</a></b> became illegal?