1 8 5 0 ▁Enc umen - I ▁Dan is ▁N iz am names i . ▁The ▁ 1 8 5 7 ▁Mat ba al ar ▁N iz am names i ▁granted ▁writers ▁lifetime ▁copy right . ▁The ▁ 1 9 1 0 ▁Auth ors ' ▁Rights ▁Act ▁was ▁based ▁on ▁mid - 1 8 0 0 s ▁French ▁law ▁or ▁the ▁German ▁Copy right ▁Code ▁of ▁ 1 9 0 1 ▁and ▁remained ▁in ▁force ▁until ▁ 1 9 5 1 ▁though ▁with ▁little ▁enfor cement . ▁ ▁Am end ments ▁Origin ally ▁written ▁in ▁December ▁ 1 9 5 1 , ▁law ▁ 5 8 4 6 ▁has ▁been ▁am ended ▁by ▁the ▁following ▁laws : ▁▁▁ 2 9 3 6 , ▁ 1 9 8 3 - 1 1 - 0 1 ▁▁ 4 1 1 0 , ▁ 1 9 9 5 - 0 6 - 0 7 ▁▁ 4 6 3 0 , ▁ 2 0 0 1 - 0 2 - 2 1 ▁▁ 5 1 0 1 , ▁ 2 0 0 4 - 0 3 - 0 3 ▁▁ 5 2 1 7 , ▁ 2 0 0 4 - 0 7 - 1 4 ▁▁ 5 5 7 1 , ▁ 2 0 0 6 - 1 2 - 2 8 ▁ ▁In ▁addition , ▁a ▁draft ▁law ▁has ▁been ▁prepared ▁to ▁am end ▁articles ▁ 2 3 , ▁ 2 5 , ▁ 4 3 , ▁and ▁ 7 1 – 8 1