A new exhibition starting tomorrow at Gressenhall Farm and Workhouse tells the story of woad, the distinctive blue dye, from prehistory to the present day.

A new exhibition starting tomorrow at Gressenhall Farm and Workhouse tells the story of woad, the distinctive blue dye, from prehistory to the present day.

An additional display about Norfolk's woad revival by local producers, Woad Inc, is also on show. Woad Inc will give special woad-dyeing demonstrations at 11.30am every day from Monday until next Sunday. The exhibition runs until Friday, June 19.

During next week's half-term, Art Attack activities explore the theme of dyes and colours. Younger visitors have the chance to work with natural and synthetic dyes and to try tie-dyeing. They can experiment with simple print techniques and create kaleidoscopes by dipping materials into dye baths.

Opening times are daily until 1 November 1 from 10am - 5pm.

Admission is adult �8.10, concessions �6.90, children (4-16) �5.80. Discounts for families and groups. Free admission with Norfolk Museums Pass.

Families will be able to step back through the centuries at a special event in Gressenhall on Monday.

The Farm and Workhouse is hosting a Norfolk history fair where an array of 18th century characters - including a parish constable, spinners and weavers, and even a tooth-puller - will entertain visitors.

There will be enactments and activities throughout the day. Visitors will be able to see the East Norfolk Militia drilling in the courtyard, join the Mannered Mob and discover what it meant to be poor in the 18th century.

There will also be demonstrations of thatching, wattle and daub, and flint knapping, as well as falconry displays by Backwoods Falconry.

History experts and enthusiasts from more than 50 local societies will also be at the event.