Workers' compensation

Question 1:

Prior to the enactment of worker's compensation statues, what defenses would employers use in order to avoid paying for employees injuries? Must be minimum of 200 words

Question 2:

Discuss the significance of historical developments in workers compensation law and program. Must be minimum of 200 words. 

Book: The insurance professional's practical guide to workers' compensation: From history through audit (Rev: 2nd ed.) 978-0-578-02096-9