Simplify the following text for a Grade 6 native English-speaking person.
Original: The Kalevala Day is celebrated in Finland on the 28 February , to match Elias LÃ nnrot 's first version of The Kalevala in 1835 .
Simplified: Elias LÃ nnrot was a man who collected these poems and made a book of them . Kalevala has been translated into many languages .