Answer:
Explanation:
The May 4, 1886, rally at Haymarket Square was organized by labor radicals to protest the killing and wounding of several workers by the Chicago police during a strike the day before at the McCormick Reaper Works.
The FBI used a technique which is called Latent Fingerprint Identification: a silver nitrate solution was used to cause a reaction of the unseen fingerprints perspiration left by the kidnappers all over the ransom notes. The reaction caused the perspiration to turn into silver chloride. This substance is white and it is also visible to the naked eye which means the fingerprints of the perpetrators were easily identifiable.
19. It was significant because they moved out of the space so no wars occured. They left so they could search for new culture. They wanted to discover new land. Much like Columbus.
