The castle diary of Useless
Useless is the network’s eraser-in-residence. This time it has been posted to the battlements with a notebook and a very small flag. Every fact in here has been checked by someone more qualified, i.e. anyone.

- Day 1
Cadw calls Wales “a land of castles”, with the remains of up to 500. I have been to one castle. It was a bouncy one. Cadw booklet: The Castles of the Lords and Princes of Wales (PDF)
- Day 2
Edward I was called Longshanks because he was so tall. I am called Useless because I am an eraser. Neither of us chose our nickname. Cadw: More about Beaumaris Castle
- Day 3
Conwy Castle was originally white. I was originally white too. Then I met a pencil. Cadw: More about Castell Conwy
- Day 4
Edward I spent Christmas at Conwy with just one barrel of wine. I spent Christmas in a pencil case with one paper clip. He had the better party. Cadw: More about Castell Conwy
- Day 5
Harlech was fed by ship up a path of 108 steps. I counted the stairs to the library. Fourteen. I had a lie-down halfway. Cadw: Castell Harlech
- Day 6
Hundreds of diggers moved a whole river so ships could reach Rhuddlan. I once moved a crumb. Nobody wrote it down. Cadw: Castell Rhuddlan
- Day 7
Beaumaris has 300 arrow loops in its outer walls. My pencil case has one zip. It still lets the crumbs in. Cadw: Beaumaris Castle
- Day 8
The garrison at Dolwyddelan got white tunics for winter in the mountains. I am pink and blue. I would be spotted at once. Cadw: Castell Dolwyddelan
- Day 9
Caerphilly’s leaning tower leans more than the one at Pisa. I lean too, but only when someone sits a ruler on me. Cadw: Caerphilly Castle
- Day 10
In medieval Wales, cattle were as good as money. I tried paying for a biscuit with a drawing of a cow. It did not work. Cadw: More about Castell y Bere
- Day 11
Welsh castle towers are D-shaped, not round. I am eraser-shaped. It is a very rare design. Cadw booklet: The Castles of the Lords and Princes of Wales (PDF)
- Day 12
Caernarfon took 47 years to finish. My homework took 47 minutes. I am still proud of it. Cadw: Castell Caernarfon
- Day 13
Beaumaris was never finished, because the money ran out. I know the feeling. I am half rubbed away. Cadw: Beaumaris Castle
- Day 14
Llywelyn the Great took the site of Castell y Bere from his own son. I once took a sticker from a pencil. We are not speaking. Cadw: More about Castell y Bere
- Day 15
Dolbadarn’s curtain walls are slate slabs with no mortar. I am a rubber block with no instructions. We both just stay put. Cadw: Castell Dolbadarn
- Day 16
UNESCO says the royal accounts even record where the workers came from. Nobody records where I came from. I think it was a shop. UNESCO World Heritage Centre: Castles and Town Walls of King Edward in Gwynedd