I'll just drop this off here:

1980’s

PETA is formed and organizes the first World Day for Laboratory Animals protest in the U.S. and the first demonstration against chicken slaughter at Arrow Live Poultry, which was subsequently closed, in Washington, D.C.

1981

PETA’s first undercover investigation resulted in an end to crippling experiments on monkeys at maryland research facility, the first-ever police raid on an animal-testing laboratory, the first animal experimentation case ever heard by the U.S. Supreme Court, the court rules unanimously in favour of PETA, and the first-ever prosecution and conviction of an animal experimenter on cruelty-to-animals charges. A PETA undercover investigation results in the first conviction of an experimenter for animal abuse and the first withdrawal of federal research funds because of cruelty to animals. PETA exposed and shut down the U.S. Army’s plan to shoot dogs at an indoor firing range, leading the military to ban the use of dogs, cats, and primates in wound experiments and training.

1983

PETA gets a U.S. Department of Defense underground “wound lab” shut down and achieves a permanent ban on shooting dogs and cats in military wound laboratories.

1984

PETA closes down a Texas slaughterhouse operation in which 30,000 horses were trucked in and left to starve in frozen fields without shelter.

1985

After PETA publicizes the gross mistreatment of animals at City of Hope in California, the government suspends more than $1 million of the laboratory’s federal funding.

1986

As a result of PETA’s campaign, the SEMA research laboratory in Maryland stops confining chimpanzees to isolation chambers.

1987

PETA stops a plan by Cedars-Sinai, California’s largest hospital, to ship stray dogs from Mexico to California for experiments.

1988

For the first time, PETA conducts a year-long undercover investigation at Biosearch, a cosmetics and household product testing laboratory, uncovering more than 100 violations of federal and state anti-cruelty laws.

1988

PETA President Ingrid Newkirk addresses some of the 35,000 people attending PETA’s Animal Rights Music Festival at the Washington Monument on June 11, 1988. It’s a breakthrough event that puts PETA on the pop-culture radar screen, with extensive coverage on MTV, thanks to headliners The B-52s, Natalie Merchant, and Howard Jones.

1989

PETA persuades Avon, Benetton, Mary Kay, Amway, Kenner, Mattel, and Hasbro to stop testing on animals. Note: Many of these companies have started testing on animals again in order to sell their products in China.

1990

After PETA exposes the backstage beating of orangutans by Las Vegas entertainer Bobby Berosini, his wildlife permit is suspended and his show closes.

1990

PETA’s first sensational vegetarian commercial is “Meat Stinks” with Grammy winner k.d. lang in July 1990. The spot gets her banned on country radio networks but draws such massive coverage that her album goes gold! Her gold record still adorns the walls of the Sam Simon Center, PETA’s Virginia headquarters.

1992

PETA’s undercover investigation into foie gras production(one of the worst forms of factory farming abuse) prompts the first-ever police raid on a factory farm. PETA convinces many restaurants to stop selling the vile product.

Foie gras is a dish that is made by Force-feeding a birds for the sole purpose of making it sick to create some bizarre delicacy.

Workers roughly grab weeks-old ducks and geese and shove a metal tube down their throats, through which they force-feed the birds up to 2kg of food every day.The birds’ livers balloon to up to 10 times their normal size – about the size of a rugby ball and birds can barely breathe, and they constantly gasp for air. This process inflicts serious injuries to birds and damages their esophagus. PETA investigators have found geese so ill that they could no longer stand up – even at facilities that boast the “highest welfare standards in the world."

PETA is relentlessly campaigning against foie gras even today, following PETA's campaign since then back in 2012, California enacted a groundbreaking ban on both the production and sale of foie gras. Few European countries soon followed.

In 2019 PETA investigation at Hudson Valley Foie Gras in New York found that So many ducks died from ruptured organs resulting from overfeeding that workers who killed fewer than 50 birds per month were given a bonus.

Since foie gras is made from the livers of only male ducks, all female ducklings—40 million of them each year in France alone—are useless to the industry and are therefore simply tossed into grinders, live, so that their bodies can be processed into fertilizer or cat food.

In 2019 New York banned sales of but not production of foie gras.

1993

All car-crash tests on animals stop worldwide following PETA’s hard-hitting campaign against General Motors’ use of live pigs and ferrets in crash tests.

1994

A California furrier is charged with cruelty to animals after a PETA investigator films him electrocuting chinchillas by clipping wires to the animals’ genitals. In another undercover exposé, PETA catches a fur rancher on videotape causing minks to die in agony by injecting them with a weedkiller. Both fur farms agree to stop these cruel killing methods.

1994

Less than a month after PETA supporters occupy Calvin Klein‘s office in New York—an action that leads to a meeting between the designer and a PETA representative—Klein announces that he will no longer design with fur, the first major fashion designer to do so.

1995

PETA persuades Mobil, Texaco, Pennzoil, Shell, and other oil companies to cover their exhaust stacks after showing how millions of birds and bats have become trapped in them and been burned to death.

1995

PETA’s efforts lead to the first-ever cruelty charges filed against a factory farmer for cruelty to chickens for allowing tens of thousands of chickens to starve to death. The president of the company ultimately pleads guilty.

1996

Following PETA’s campaign, NASA pulls out of Bion—a joint U.S., French, and Russian experiment in which monkeys wearing straitjackets were to have electrodes implanted in their bodies and be launched into space.

1997

A PETA investigation that documented the anal electrocution of foxes leads to the first-ever guilty plea by a fur rancher to cruelty-to-animals charges.

1998

PETA succeeds in getting Taiwan to pass its first-ever law against cruelty to animals after the group rescues countless dogs from being beaten, starved, electrocuted, and drowned in Taiwan’s pounds.

1999

Undercover investigations into pig-breeding factory farms in North Carolina and Oklahoma reveal horrific conditions and daily abuse of pigs, including the fact that one pig was skinned alive, leading to the first-ever felony indictments of farm workers.

1999

PETA conducts an undercover investigation into the Nielsen Farmspuppy mill in Kansas, which reveals extremely small enclosures and rampant sickness, abuse, and death. PETA's investigation leads to the closure of the facility and a $20,000 fine from the U.S. Department of Agriculture (USDA). The Nielsens are also “permanently disqualified from being licensed” by the USDA.

1999

PETA’s grassroots campaign, Congressional testimony, and scientific documentation drive the White House and the EPA to spare 800,000 animals from chemical toxicity testing in the high production volume chemical-testing program. As many as 4.5 million animals were spared from chemical tests in a massive European Union testing program after PETA provided documentation of duplicative testing. This may be the largest victory for animals that has ever occurred.