They have three claims to notice: as being admirably simple and vigorous in themselves; as having influenced all later workers in this medium, and particularly Ghiberti and Donatello; and as being the bronze work of the sculptor of certain of the stone scenes round the base of Giotto's campanile.

The panel in which the Baptist is seen up to his waist in the water is surely the very last word in audacity in bronze.

Ghiberti was charged with making bronze do things that it was ill fitted for; but I do not know that even he moulded water--and transparent water--from it.
The year 1399 is one of the most notable in the history of modern art, since it was then that the competition for the Baptistery gates was made public, this announcement being the spring from which many rivers flowed.

In that year Lorenzo Ghiberti, a young goldsmith assisting his father, was twenty-one, and Filippo Brunelleschi, another goldsmith, was twenty-two, while Giotto had been dead sixty-three years and the impulse he had given to painting had almost worked itself out.

The new doors were to be of the same shape and size as those by Andrea Pisano, which were already getting on for seventy years old, and candidates were invited to make a specimen relief to scale, representing the interrupted sacrifice of Isaac, although the subject-matter of the doors was to be the Life of S.John the Baptist.