Dura mater. Dura mater, or dura, is a thin membrane that is the outermost of the three layers of the meninges that surround the brain and spinal cord. It is derived from mesoderm. The other two meningeal layers are the pia mater and the arachnoid mater.ura mater. Dura mater, or dura, is a thin membrane that is the outermost of the three layers of the meninges that surround the brain and spinal cord. It is derived from mesoderm. The other two meningeal layers are the pia mater and the arachnoid mater.
The story with the most credibility is the one that, the PiÃ±a Colada was introduced on August 15, 1954 at the Caribe Hiltonâs Beachcomber Bar in San Juan, Puerto Rico by its alleged creator, Ramon âMonchitoâ Marrero.
Recipe by Nif. My Husband and I had a PiÃ±a Colada at the place of its origin in Old San Juan, Puerto Rico - Barrachina Restaurant. This is actually the exact recipe that I got from the restaurant for the original Pina Colada. It is recommended that you use Bacardi rum as it is from Puerto Rico as well (we visited the distilllery that same day).