Today's poem

Recently I love poems by anonymous. When was a poem written? Where was a poem written? Who wrote a poem? Such riddles are charms for me. Hey Riddle Riddle!  A British poet Carol Rumens's article is a good reference for me:

Algy by Anonymous

Algy met a bear,
The bear met Algy.
The bear was bulgy,
The bulge was Algy.