I believe the period in question during which speaking or reading Gaelic were
illegal was long after the Normans invaded; this would have been the period
immediately after the t Tudor invasion and plantations, when the so called
"New English" were making the laws. This new ruling class wasn't naturalized
at all, and remained very protective of their British heritage. Their
prejudice against the native Irish is evident in such works as Edmund Sppenser's
"A View of the Present State of Ireland".
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