The other two meningeal layers are the arachnoid mater and the pia mater. The dura surrounds the brain and the spinal cord and is responsible for keeping in the cerebrospinal fluid.he other two meningeal layers are the arachnoid mater and the pia mater. The dura surrounds the brain and the spinal cord and is responsible for keeping in the cerebrospinal fluid.
For 50 years, the stairs carried fans of the five city sports teams to and from the Polo Grounds in Harlem, until they finally rusted away in the years following the stadiumâs demolition, in 1964. John T. Brush, who built the stairway and donated it to the city, died the year before it opened to the public.
WORLD SERIES: 1911, 1912, 1913, 1917, 1921*, 1922*, 1923, 1924, 1933, 1936, 1937, 1951, 1954 (4 W, 9 L) * All those years apply to the Giants; in 1921 and 1922 both the Giants AND the Yankees hosted the World Series here. PREVIOUS STADIUM ON SAME SITE: Polo Grounds (IV), built in 1890.