Well I don't know what your asking but I assume your talking about natural disasters and what causes a thousand roofs to collapse. It might have been an earthquake and the roof was heavier than the rest of the building and it stayed in place while the bottom of the house rocked.
Explanation: <em>These factors led the Supreme Court to their ultimate ruling that the Fourteenth Amendment protects persons beyond the racial classes of white or black, and extends protection to nationality groups as well</em>
