Here are some one liners...
The Runaway Bride... or Groom: a Breach of Promise becomes Law -- A promise to marry becomes legal precedent.
All the World is a Stage so Be Sure to Wear Pants -- Pants become popular primarily because of Shakespeare's plays.
A New Amsterdam for a New World -- The Dutch establish New Amsterdam on the island of Manhattan.
The Runaway Bride... or Groom: a Breach of Promise becomes LawThis year, through a judicial ruling, a "breach of promise" becomes legal precedence. The "promise" is a promise to marry made between a man and a woman. A man's word constitutes a binding contact. A woman's promise is based more on social custom than her actual ability to make a binding contact. If a man fails to marry a woman, she can sue him since an engagement is often a lengthy process and she loses many opportunities for marriage during that time. If she becomes pregnant due to premarital sex (which often occurred for some strange reason) he also ruined her reputation which was a severe hurt... called a tort in legal terms. The defense to a breach of promise is some substantial misrepresentation of character unknown at the time of promise or a substantial physical injury of one of the parties. Losing an arm or an eye is not enough. This new judicial precedence mostly forces a man to keep his promise to a woman and not mislead her simply to get sex. If she was a prostitute prior to a man's promise and he knew of it, an attack on her character is no defense. A woman has fewer options if she wants to back out, but if she does, she must return all gifts, including the engagement ring, that were conditional upon marriage. Any wedding gifts sent by friends and family must be returned. In years to come a "breach of promise" will become formal law but the details will be left to judges to handle.  
All the World is a Stage so Be Sure to Wear PantsPants were not really known as pants until now. They were called "pantaloons" and they were usually worn in stage productions for comedic affect. They are named after a standard stage character called Pantalone who always wears baggy leg wear. He is also overly concerned for his daughter's virtue and protecting his investments so he is the constant butt of jokes for the stage. Pants themselves are made popular by Shakespeare's play "As You Like It" which has been published in booklet form this year. Shakespeare died a few years ago but his influence will continue into the modern day.   
A New Amsterdam for a New WorldThe Dutch West India Company has established a colony on the island of Manhattan for the purposes of exercising their monopoly. That's a fancy way of saying that they are there to make money as fast as they possibly can. Currently the only money-making trade available is for furs. In order to do much more than that, they will have to bring people from the Netherlands. That project will require a proper charter, with legal commitments for granting large plots of land. The idea is to let other people organize the large number of colonists into manageable groups. Anyone who can bring over a minimum of 50 colonists as a group will be granted a premium parcel of land. These new manor lords will be called patroons, but that won't come about until 1629. Until then, the region will be run by a governor and several advisors appointed by the company.    
This Year on Wikipedia
Year 1623, Wikipedia.