<Tr> <Td_colspan="2"> Lemmerman v AT Williams Oil Co, 350 SE 2d 83 (1986) </Td> </Tr> <Tr> <Td_colspan="2"> Community for Creative Non-Violence v Reid, 490 US 730 (1989) </Td> </Tr> <Tr> <Td_colspan="2"> Nationwide Mut . Ins. Co. v Darden, 503 US 318 (1992) </Td> </Tr> <Tr> <Td_colspan="2"> Castillo v Case Farms of Ohio, 96 F Supp . 2d 578 (1999) </Td> </Tr>

In which decade was much of the employment law in the united states enacted