Stanley plan
... that Virginia's policy of "massive resistance" led to enactment, in September 1956, of the Stanley plan, laws requiring immediate closure of any public school that integrated racially?
... that <a href="./Virginia" id="mwXQ" rel="mw:WikiLink" title="Virginia">Virginia</a>'s policy of "<a href="./Massive_resistance" id="mwXg" rel="mw:WikiLink" title="Massive resistance">massive resistance</a>" led to enactment, in <span about="#mwt15" class="nowrap" data-mw='{"parts":[{"template":{"target":{"wt":"Nowrap","href":"./Template:Nowrap"},"params":{"1":{"wt":"September 1956"}},"i":0}}]}' id="mwXw" typeof="mw:Transclusion">September 1956</span>, of the <b id="mwYA"><a class="mw-redirect" href="./Stanley_plan" id="mwYQ" rel="mw:WikiLink" title="Stanley plan">Stanley plan</a></b>, laws requiring immediate closure of any <a href="./State_school#United_States" id="mwYg" rel="mw:WikiLink" title="State school">public school</a> that <a href="./Racial_segregation_in_the_United_States" id="mwYw" rel="mw:WikiLink" title="Racial segregation in the United States">integrated racially</a>?