Some context: Supergirl is a fictional superhero appearing in American comic books published by DC Comics. The character was created by writer Otto Binder and designed by artist Al Plastino. Supergirl first appeared in a story published in Action Comics #252 (May 1959) titled "The Supergirl from Krypton". Kara Zor-El is the biological cousin of Kal-El (Superman).
After long-time Superman family editor Mort Weisinger retired in 1971, the character underwent revitalization under editor Joe Orlando and artist Mike Sekowsky. Wearing a series of new outfits, leaving her adopted foster home with the Danvers family, Linda goes on to San Francisco where she works for KSF-TV as a camera operator and develops a crush on her boss, Geoffrey Anderson. These stories introduced Supergirl's most memorable villain from this period: Lex Luthor's niece Nasthalthia, or Nasty. Nasty had made two appearances towards the end of Linda's college years, then pursued her to KSF-TV, trying to secure proof of her dual identity.  Supergirl starred in her first solo eponymous monthly series beginning in 1972 until October 1974, when her monthly title merged with Superman's Girl Friend, Lois Lane, and Superman's Pal Jimmy Olsen to produce a new title: then-highest DC selling series called The Superman Family, where she eventually became the steady lead story. Linda worked as a student advisor at New Athens Experimental School, before leaving for New York to follow a career in acting with daytime soap Secret Hearts.  In 1982 Supergirl received a second monthly solo series titled The Daring New Adventures of Supergirl, relocating the character to Chicago as Linda became a mature student of Psychology. Industry legend, and former DC Publisher, Carmine Infantino provided the pencilled art (Bob Oksner inked). With issue 13 the title was revamped, with a new costume design (sporting a red headband) and the title shortened to just Supergirl. The series ran until sudden cancellation in 1984, only two months before the character's debut in a big-budget Hollywood film starring Helen Slater.  In the Crisis on Infinite Earths (1985) the greatest heroes from Earth-One, Earth-Two, Earth-Four, Earth-S, and Earth-X join forces in order to defeat the Anti-Monitor. When Superman comes face to face with the Anti-Monitor and is knocked unconscious, Supergirl rushes to save him before he is killed. She is able to fight him off long enough for Dr. Light to carry her cousin to a safe distance, but is killed by the Anti-Monitor. A public memorial service for Supergirl takes place in Chicago, where Batgirl (Barbara Gordon) delivers the eulogy. In her remarks she states "Kara is a hero. She will not be forgotten." Superman then gives his late cousin burial by taking her corpse to Rokyn/New Krypton to Zor-El and Allura. A Superman issue the next month reveals that Kara had experienced a premonition about her own passing. However, when the universe is rebooted, the timeline is altered. Kara Zor-El and all memory of her is erased from existence.
what else happened
A: These stories introduced Supergirl's most memorable villain from this period: Lex Luthor's niece Nasthalthia, or Nasty.

Some context: Leonard, the fifth of seven children of Cicero and Getha Leonard, was born in Wilmington, North Carolina. He was named after Ray Charles, his mother's favorite singer. The family moved to Washington, D.C., when he was three, and they settled permanently in Palmer Park, Maryland when he was ten. His father worked as a supermarket night manager and his mother was a nurse.
On November 7, 1988, Leonard made another comeback, facing Don Lalonde at Caesar's Palace in Las Vegas. They fought for Lalonde's WBC Light Heavyweight Championship and the newly created WBC Super Middleweight Championship, which meant that Lalonde had to make 168 lbs. Many were critical of Leonard for stipulating that his opponent--a natural 175 pounder--should weigh less than his usual fighting weight, which could possibly weaken him. However, Lalonde later told HBO's Larry Merchant that he didn't have any trouble making weight.  Lalonde, 31-2 with 26 knockouts, was guaranteed at least $6 million and Leonard was guaranteed over $10 million.  This would be Leonard's first professional fight without Angelo Dundee. For Leonard's fight with Hagler, Dundee worked without a contract and received $175,000, which was less than 2% of Leonard's purse. Dundee was unhappy with that amount. He requested a contract for the Lalonde fight and Leonard refused. "I don't have contracts. My word is my bond", Leonard said. Janks Morton and Dave Jacobs trained Leonard for the Lalonde fight.  Lalonde's size and awkwardness troubled Leonard. In the fourth round, a right hand to the top of Leonard's head dropped him for just the second time in his career. Early in the ninth, Lalonde hurt Leonard with a right to the chin. Leonard fired back and hurt Lalonde with a right. He drove him to the ropes and unleashed a furious assault. Lalonde tried to tie up Leonard, but got dropped with a powerful left hook. He rose but was soon down again, and the fight was stopped. Judges Chuck Giampa and Franz Marti had Leonard ahead by scores of 77-74 and 77-75, respectively. Judge Stuart Kirshenbaum had Lalonde ahead 76-75.  After the fight, Leonard vacated the light heavyweight title, but kept the super middleweight title. Also, Leonard and Janks Morton split because of personal differences. Morton was replaced as co-trainer by Pepe Correa, who had worked with Leonard for most of the previous fifteen years.
what was his greatest accomplishment?
A:
After the fight, Leonard vacated the light heavyweight title, but kept the super middleweight title.