How did the British Parliament develop?

This is rather a broad question that could be answered in
a variety of ways.

To start at the beginning, the
Parliament originally developed out of the monarch's court.  In the early monarchy, the
king (usually a king rather than a queen) would sometimes gather his court and discuss
issues with them, asking for their advice.  This was done
informally.

As the nobles of the court got more power, this
became a more formal arrangement and Parliament became something of an institution. 
Over the years, the kings were forced to include more people from a variety of
backgrounds in the Parliament as power spread to people of other
classes.

Parliament took more an more power from the
monarchy over the years until (by the mid-1600s) Britain had a parliamentary or
constitutional monarchy in which Parliament held a great deal of
power.

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