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https://en.wikipedia.org/
https://www.swanngalleries.com/
https://www.historyextra.com/
https://marlborough.news/features/features-arts-entertainment/litfest/2013/charles-dickens-love-for-his-queen-revealed-amid-the-class-war-clash-still-with-us-today/
http://scihi.org/charles-dickens-writer-critic-victorian-era/
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https://spartacus-educational.com/PRdickens1.htm