A timeline of the Little Rock Zoo:
| 1926 | The Little Rock Zoo (LRZ) is founded as part of the Little Rock Parks and Sanitation department. |
| 1945 | Considered an educational tool for the community, LRZ becomes a part of the Department of Parks and Recreation. |
| 1947 | More than 5,000 people attend Ruth the Elephant’s 34th birthday party. A 1,000-pound, 13-tier cake is made for the occasion. |

Credit: Little Rock Zoo
| 1952 | LRZ acquires Big Arkie, the largest captive alligator in the United States. Big Arkie is captured outside of Hope and spends the night in the city’s public kiddie pool before being transferred to the zoo. |

Credit: Little Rock Zoo
| 1954 | Ellen the elephant is purchased as a companion for Ruth. When her train arrives in downtown Little Rock, Ellen breaks out of her crate and is allowed to roam around Union Station until her handlers pick her up. |

Credit: Little Rock Zoo
| 1957 | LRZ becomes the most popular facility in the parks system with 200,000 annual visitors. |
| 1962 | The I-630 ramp is built, cutting off plans for southern expansion. |
(Slide the bar to see I-630 and the Little Rock Zoo from the 1960s to today!)
| 1966 | Animal Welfare Act is passed. LRZ begins to move away from cages and focus on recreating natural habitats. |
| 1971 | The Big Three project is completed, adding Monkey Island, Chimpanzee Island and the Exotic Birdhouse. |
| 1972 | LRZ hosts groundbreaking ceremony for a nursery donated by the Civitan Club. |
| 1975 | Friends of the Zoo, the zoo’s first membership program, is formed to foster education, volunteer work and fundraising. LRZ Docent program is formed. |
| 1978 | LRZ briefly changes its name to Zoo of Arkansas. The new name never sticks, and is changed back three years later. |
| 1980 | Bring Down the Bars campaign begins efforts to remove animals from barred cages. |
| 1981 | LRZ implements its first admission fee: $1 for adults and 50 cents for children. |
| 1982 | The Big Cats exhibit opens to the public. |
| 1985 | AAZPA awards accreditation to the LRZ. |
| 1988 | The Great Apes exhibit opens to the public. |

Credit: Dean Wheeler
| 1992 | The first Boo at the Zoo event is held. |

| 1997 | Lemur Island opens. |
| 1998 | LRZ loses its AAZPA accreditation. |
| 1999 | The Zoo Board of Governors is created and the zoo becomes a stand-alone city dept. |
| 2001 | LRZ regains accreditation. |
| 2003 | The Arkansas Zoological Foundation is created. |
| 2006 | First Wild Wines event is held. |
| Café Africa opens, a new entry plaza is built, and new gorilla structures are introduced. |

Credit: Dean Wheeler
| 2011 | Laura P. Nichols Penguin Pointe opens. |

Credit: Dean Wheeler
| 2012 | Laura P. Nichols Cheetah Outpost is opened. |

Credit: Dean Wheeler
| 2016 | Arkansas Heritage Farm exhibit set to open April 2. |

Credit: Little Rock Zoo