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Countdown to Harpenden History Day – 20 April
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Local History Day: 20 April
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Scientific work
Creekmouth Village
Built by John Bennet Lawes for workers at his Chemical Factory on the Thames
The Elliott 401 Computer at Rothamsted
First electronic computer in civilian research
The Pathology Labs
Ministry of Agriculture, Food & Fisheries labs at Hatching Green
Businesses, trades, employment
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Horticulture
Scientific work