<Table> Harry Potter and the Philosopher's Stone <Tr> <Td_colspan="2"> Cover for one of the earliest UK editions </Td> </Tr> <Tr> <Th> Author </Th> <Td> J.K. Rowling </Td> </Tr> <Tr> <Th> Illustrator </Th> <Td> <Ul> <Li> Thomas Taylor (UK Edition) </Li> <Li> Jonny Duddle (2014 UK Edition) </Li> <Li> Mary GrandPré (US Edition) </Li> <Li> Kazu Kibuishi (2013 US Edition) </Li> <Li> Jim Kay (Illustrated edition) </Li> </Ul> </Td> </Tr> <Tr> <Th> Series </Th> <Td> Harry Potter </Td> </Tr> <Tr> <Th> Release number </Th> <Td> 1st in series </Td> </Tr> <Tr> <Th> Genre </Th> <Td> Fantasy </Td> </Tr> <Tr> <Th> Publisher </Th> <Td> <Ul> <Li> Bloomsbury (UK) (Canada 2010--present) </Li> <Li> Arthur A. Levine / Scholastic (US) </Li> <Li> Raincoast (Canada 1998--2010) </Li> </Ul> </Td> </Tr> <Tr> <Th> Publication date </Th> <Td> <Ul> <Li> 26 June 1997 (UK) </Li> <Li> 1 September 1998 (US) </Li> </Ul> </Td> </Tr> <Tr> <Th> Pages </Th> <Td> <Ul> <Li> 223 (UK Edition) </Li> <Li> 332 (2014 UK Edition) </Li> <Li> 309 (US Edition) </Li> <Li> 336 (2013 US Edition) </Li> <Li> 256 (illustrated Edition) </Li> </Ul> </Td> </Tr> <Tr> <Th> ISBN </Th> <Td> 0 - 7475 - 3269 - 9 </Td> </Tr> <Tr> <Th> Followed by </Th> <Td> Harry Potter and the Chamber of Secrets </Td> </Tr> </Table> <Tr> <Td_colspan="2"> Cover for one of the earliest UK editions </Td> </Tr>

When did the philosopher's stone come out