World war 1 brought increased immigration to the united states from which country

Immigration to the US during WWI led to an average of 1 million immigrants per year, since the US policy of "open door” immigration did not establish a limit on the number of people who could enter the country. Masses of immigrants who escaped the hardships of this long-lasting war came from European countries such as Italy, France, Germany, Britain and Russia. Besides, many refugees came from Bulgaria, Greece, Romania, Serbia, and Turkey, as well as Jews who fled for their lives from anti-Semitic feeling throughout eastern Europe. It is important to state that many immigrants enlisted in American military forces and served the US during the development of WWI.

answer; /// the correct answer is evidence of the olmec civilization has been found in southern american in a hot steamy forest, archaeologists have found earthen artifacts at several sites that were evidence of the olmec civilization. these   artifacts were mounds,courtyards and pyramids build of stones, also on top of the mounds were many monuments made of stone, some of these stone structures are very large, they weigh as much as 44

freedom of speech is also protected by the 1 amendment.

explanation:

here is pretty much what the 1st amendment says:

congress shall make no law respecting an establishment of religion, or prohibiting the free exercise thereof; or abridging the freedom of speech, or of the press; or the right of the people peaceably to assemble, and to petition the government for a redress of grievances.