Standing just 20inches tall, the horse attracted huge media interest when he was born in April last year.
(...) 'This has been a remarkable year for us and for Einstein,' said Mr Cantrell, 44, who bought Einstein for their small farm along with his wife Rachel.
'We are both horse enthusiasts and we decided to get ourselves a miniature horse from the renowned breeder Judy Smith at a Miniature Horse Farm in New Hampshire.
Cute: Standing only 20 inches high hasn't stopped Einstein becoming quite a celebrity with appearances on Oprah and across the U.S.
'Einstein is the smallest horse on record ever to survive and when the news got out to the media the level of interest was incredible.
'The average weight of a newborn miniature horse is 18lb. The average height at birth is 21 inches.
Einstein is all the remarkable because he shows no dwarf characteristics and is simply a very small miniature horse.
His mother Finesse stands a relatively tall 32 inches and his dad Painted Feather measures 30 inches.
Little and large: Einstein's stallion friend Playboy towers over him as the pair meet up at home in New Hampshire
Best of friends: Einstein stands alongside Hannah, a St. Bernard he has become buddies with. He also plays with his owner's dog Lilly
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