@ Ajidica
where have you got the idea about the steel/iron from ?, can't you tell me more about what you mean by "adding" , do you mean during the smelting (turning ore into metal) process maybe ?
I'm sorry but I think this paints too simplistic a picture, there are many aspects to working steel. I know you have said "capabilities" which may not include every aspect of steelworking, and indicate just one specifically, but many reading this may not realise that. It would be quite easy after reading this to assume that there was no improvement in steel working at all for centuries.
I expect you're referring to the manufacture of slashing sword, which is a credible argument, but the changing role of the sword is partially to blame here not just declining swordsmithing abilities.
As for other steelmaking capabilities, the manufacture of armour continued to improve after the Anglo-Saxons, and springs and steel hand tools are two other examples to be considered before making any judgements about their, or their successors general steelworking abilities overall.
Having said that, the Anglo-Saxons were superb metal workers, but it's in goldsmithing, in which they weren't surpassed for centuries IMHO.
where have you got the idea about the steel/iron from ?, can't you tell me more about what you mean by "adding" , do you mean during the smelting (turning ore into metal) process maybe ?

The Anglo-Saxons had steelworking capabilities that were not surpassed until the eighteenth or nineteenth centuries.
I'm sorry but I think this paints too simplistic a picture, there are many aspects to working steel. I know you have said "capabilities" which may not include every aspect of steelworking, and indicate just one specifically, but many reading this may not realise that. It would be quite easy after reading this to assume that there was no improvement in steel working at all for centuries.
I expect you're referring to the manufacture of slashing sword, which is a credible argument, but the changing role of the sword is partially to blame here not just declining swordsmithing abilities.
As for other steelmaking capabilities, the manufacture of armour continued to improve after the Anglo-Saxons, and springs and steel hand tools are two other examples to be considered before making any judgements about their, or their successors general steelworking abilities overall.
Having said that, the Anglo-Saxons were superb metal workers, but it's in goldsmithing, in which they weren't surpassed for centuries IMHO.