Amateur archaeologists are unearthing Bishop’s Stortford’s history with a dig in Castle Park. Their work, under the watchful eye of experts from MOLA, the Museum of London Archaeology Service, is giving new insights into the town’s development. During the first week of excavations around 50 people – from complete beginners to archaeology students – worked on two trenches, carefully scraping away the soil down to a depth of more than half a metre. The volunteers, who have already worked for a total of more than 200 hours, were undeterred by changeable weather. After a downpour, the first trench…