Charles was addressing Commonwealth Heads of the Government Meeting in Samoa for the first time as the leader of the nations group.
The monarch urged foreign heads to find a way to "right inequalities that endure".
Ministers have defied calls by some Commonwealth leaders to hold a "meaningful conversation" about whether the UK should pay reparations for its role in the slave trade.
In his first speech to the biannual congregation of leaders since becoming Head of the Commonwealth, the King said: "I understand, from listening to people across the Commonwealth, how the most painful aspects of our past continue to resonate.
"It is vital, therefore, that we understand our history to guide us to make the right choices in the future."
Charles, who did not directly address slavery, added: "None of us can change the past. But we can commit, with all our hearts, to learning its lessons and to finding creative ways to right inequalities that endure."
This story is from the {{IssueName}} edition of {{MagazineName}}.
Start your 7-day Magzter GOLD free trial to access thousands of curated premium stories, and 9,000+ magazines and newspapers.
Already a subscriber ? Sign In
This story is from the {{IssueName}} edition of {{MagazineName}}.
Start your 7-day Magzter GOLD free trial to access thousands of curated premium stories, and 9,000+ magazines and newspapers.
Already a subscriber? Sign In
Sarina's tough on England
ENGLAND manager Sarina Wiegman is happy to make life uncomfortable for her players, as they attempt to force their way into her Euros team.
Dahl charity delivers a Marvellous day out
THE parents of a three-year-old boy who suffers a serious lifelong condition have told how a trip to Winter Wonderland made their family's Christmas.
IN PAIN FROM MY HORSE FALL INJURY BUT I CAN STILL WALK HUSKIES
A DOGGY daycare boss who took a big husky for walks is being accused of lying about claims that a fall from a horse left her arm severely disabled.
Lucy Letby's parents asked hospital for meeting over their 'anguish'
LUCY Letby's \"anguished\" parents pleaded for a meeting with hospital bosses as police investigated their daughter, a public inquiry has heard.
We are dreading our next bill in a cold flat
ELLY Rosier, pictured, rents a flat in a Victorian conversion in London with her boyfriend. The couple are doing all they can to keep energy bills down.
Biden branded a hypocrite as he pardons his son
President breaks pledge not to meddle
Wills specialist loses own inheritance fight
A BARRISTER specialising in will disputes must pay more than £200,000 after losing a High Court inheritance battle with his brother.
I've finally retired from nursing at age of 95
A NURSE who started her healthcare career before the NHS was formed is finally retiring - aged 95.
Major breakthrough can give 20-year head start in tackling Alzheimer's
ALZHEIMER'S could be detected up to 20 years before symptoms start to show thanks to a major breakthrough.
'Imagine having no one to even say hello to'
DAME Joanna Lumley is highlighting the plight of isolated older people across the country who face spending Christmas Day all alone.