Triangular area of marshland formed by deposits of silt at the mouth or some rivers?

Delta

Explanation:

Delta is a triangular region where rivers divide into small streams and then progresses to drain into a big river. Such regions possess rich alluvial and mineral soil deposits. It is the part of an old age river.

For example - the largest delta of the world is the  Ganges Bhramaputra delta

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.

not really a history or a question at all.

explanation:

maybe this isn't the best place to ask this, maybe a social media platform like twitter or instagram? -austin