Is it possible if anyone here can give me a short definition of "Declaration of Independence" and the importance of it?

The Declaration of Independence, the founding document of the United States, was approved by the Continental Congress on July 4, 1776, and announced the separation of 13 North American British colonies from Great Britain. It explained why the Congress on July 2 “unanimously” (by the votes of 12 colonies, with New York abstaining) had resolved that “these United Colonies are, and of right ought to be Free and Independent States.”

Explanation:

Importance:

The importance of the Declaration of Independence can hardly be overstated. It established for the first time in world history a new nation based on the First Principles of the rule of law, unalienable rights, limited government, the Social Compact, equality, and the right to alter or abolish oppressive government.

angel island immigration station was an immigration station located in san francisco bay which worked from 1910 to 1940. the majority of immigrants that got there were from the asian hemisphere, specifically from china, japan, russia, and south asia, being china the country from where more people arrived.

the number of foreigners arriving at it took the attention of americans who feared the new arrivals would take their jobs. the work opportunities were not abundant due to the economic comedown of 1870 and the asians, as newcomers, were willing to work for cheaper wages. soon they started to be seen as a threat, which led to an increased discrimination against the chinese - the biggest ethnicity arrived at this station until 1915 when japanese immigrants outnumbered them - being considered as unsuitable americans hence their looks and social situation.

at the station, the immigrant's detention may vary depending on how long the interrogation process took: it could be weeks, months, or even years.

finally, in 1940 an explosion destroyed administration building located on the island, so the united states government decided to stop the process.

answer: in 1900, there were no "workplace safety laws"!

explanation: at the beginning of this century, workers in the united states faced remarkably high health and safety risks on the job.

a century ago in 1900 about three hundred out of every one hundred thousand miners were killed on the job each year.

[industria] developments occurred within a legal and regulatory climate that diminished employer’s interest in safety. as a result, americans developed production methods that were both highly productive and often very dangerous.