Sue Beeton, associate professor of tourism at La Trobe Business School, Australia agreed.

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The first instalment of of Mrs Beeton's Book of Household Management was published in 1861.

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David quoted other writers as freely as Beeton had done, although unlike Beeton she acknowledged her sources.

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But Mrs Beeton had not honed her management techniques on large corporations.

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Mrs Beeton was mainly concerned with rules for organising the five to 35 full-time resident employees that her readers would typically have had to deploy.

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Containing linseed, sun raisins, liquorice and rum, Mrs Beeton wrote that the "worst cold is generally cured by this remedy in two or three days".

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In Mrs Beeton's Book of Home Management, a best-seller for decades after it was first published in 1861, there is a chapter on first aid and home remedies - including a hot toddy cold treatment.

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Mr Edwards added that the 21st Century version of the toast sandwich is healthier than the one from Mrs Beeton's era because of the vitamins and minerals - such as calcium - that are added to bread today.

BBC: Toast sandwich is UK's 'cheapest meal'