The Cincinnati Zoo started out on 66.4 acres of land on September 18, 1875, Thus becoming the second zoo in the country. Philadelphia had opened the first zoo 14 months earlier.
CINCINNATI ZOO HIGHLIGHTS
1873: At the urging of wealthy businessman
Andrew Erkenbrecher the Zoological Society of Cincinnati is incorporated.
1875: The Zoo opens with 769 animals on display. Admission
is 25 cents. 15 cents for children.
1877: Zoo collection expands with the addition
of an Indian rhinoceros and a California sea lion exhibit.
1888: Zoo acquires and exhibits Mr. and Mrs. Rooney,
thought to be the only chimpanzees in the nation.
1903: Zoo opens a 3 acre buffalo range.
1906: Elephant House opens. It went on the National
Register of Historic Places in 1975.
1914: Martha, the world's last surviving passenger
pigeon, dies.
1917: Anna Sinton Taft and Mary Emery buy the zoo for
$250,000.
1920: Cincinnati Summer Opera (known as Zoo Opera)
debuts at the Zoo.
1931: Zoo acquires Suzie, its first gorilla.
1932: Zoo is formally transferred to the city of
Cincinnati for $325,000.
1934: Barless lion and Tiger grottos open at a cost of
$2,500.
1935: African Veldt opens with zebras, antelopes and
birds.
1938: Children's Zoo opens.
1951: Ape House and attached amphitheater open. Monkey
House is converted to the Reptile House; the old Reptile House is converted to
the Bird House.
1952: King Tut, founder of the zoo's gorilla family,
arrives.
1957: Dr. Albert Schweitzer donates a 3-year old
gorilla named Penelope.
1970: Sam is the first gorilla born at the zoo; 8 days
later, Samantha was born.
1971: Opera leaves the zoo for Music Hall.
1975: Big Cat Canyon opens with three 1-year old white
tigers.
1975: Zoo Academy opens.
1978: Gorilla World and World of Insects (Insectarium)
both open.
1982: Zoo opens a cryogenics unit and begins freezing
and storing embryos, eggs and semen.
1985: Carnivora House opens.
1987: The Cincinnati Zoological Garden is renamed
Cincinnati Zoo and Botanical Garden; the zoo is designated a National Historic
Landmark.
1990: Komodo Dragon exhibit opens.
1991: Center for the Reproduction of Endangered
Wildlife (CREW) opens.
1993: Jungle Trails, a 2 1/2-acre simulated tropical
Rainforest opens.
1995: Zoo sets a U.S. record with six gorilla births
in one year, including the world's first test tube gorilla.
1996: Renovated and expanded Bird House opens as Wings
of the World.
2000: Vanishing Giants (renovated Elephant
House) and Lords of the Artic polar bear exhibit open.
2005: Wolf Woods opens in the Spaulding Children's
Zoo.
The first non-postcard image above shows a bird's-eye-view of the zoo as it looked in the beginning. The second image show various scenes of the zoo as it looked in 1878. The third shows scenes of the zoo around 1930.
The 10 images below show the zoo as it existed in 1878. They are from a zoo souvenir book.

Deer Park &
Spring
Washington Ave.
Entrance
Monkey
House
Aviaries & Carnivora
Elephant & Buffalo
House

Interior
Carnivora
Restaurant and
Lake
Sea Lion
Basin
Bear
Pits
This zoo map shows the growth and development of the zoo in 1952.
ENTRANCE TO ZOO
Not a postcard

Looking out from zoo entrance
For 51 years the Summer Opera, Night Concerts, and Musical Fetes were the great events of the summer season. These were held first at the bandstand and then thru the years in various structures until the Opera Pavilion was built. After the Summer Operas moved to the Music Hall this final structure was razed in 1972.
The 1st 2 cards above show the Moorish style bandstand that was built in 1889. In 1911 it was replaced by the concrete shell shown in the 4 cards below. Gibbon Island is now located at this spot.
1936 SUMMER OPERA PROGRAM


Cover
4 of 16
pages
This had to be scanned in 2 parts
Two non-postcard scenes from the 1940s and 50s of the expanded pavilion crowds during the opera season.
11 cards showing the zoo's Wild Fowl Lake where many types of ducks, geese and swans live.