<Table> <Tr> <Th_colspan="2"> Prohibition of Mixed Marriages Act, 1949 </Th> </Tr> <Tr> <Td_colspan="2"> </Td> </Tr> <Tr> <Td_colspan="2"> Act to prohibit marriages between Europeans and non-Europeans, and to provide for matters incidental thereto . </Td> </Tr> <Tr> <Th> Citation </Th> <Td> Act No. 55 of 1949 </Td> </Tr> <Tr> <Th> Enacted by </Th> <Td> Parliament of South Africa </Td> </Tr> <Tr> <Th> Date of Royal Assent </Th> <Td> 1 July 1949 </Td> </Tr> <Tr> <Th> Date commenced </Th> <Td> 8 July 1949 </Td> </Tr> <Tr> <Th> Date repealed </Th> <Td> 19 June 1985 </Td> </Tr> <Tr> <Th_colspan="2"> Amends </Th> </Tr> <Tr> <Td_colspan="2"> Prohibition of Mixed Marriages Amendment Act, 1968 </Td> </Tr> <Tr> <Th_colspan="2"> Repealing legislation </Th> </Tr> <Tr> <Td_colspan="2"> Immorality and Prohibition of Mixed Marriages Amendment Act, 1985 </Td> </Tr> <Tr> <Th_colspan="2"> Related legislation </Th> </Tr> <Tr> <Td_colspan="2"> Immorality Act </Td> </Tr> <Tr> <Td_colspan="2"> Status: Repealed </Td> </Tr> </Table> <Tr> <Th_colspan="2"> Prohibition of Mixed Marriages Act, 1949 </Th> </Tr>

When was the prohibition of mixed marriages act passed implemented and why