How do you convert the Sea Circle Calendar and the Gregorian Calendar in King of Thieves, please?

49 years ago / 1471 in the Sea Circle Calendar

Brooke's soul finally finds its way to its pirate ship in the waters of the Devil's Triangle, and returns to resurrect itself in a body that has been turned into a skeleton.

35 Years Ago/1485

After Searlec, a former pirate, is miraculously cured of a terminal illness by Sakura, Searlec begins researching a "cure-all".

34 Years Ago / 1486 A.D.

Kati Foram is born (March 9th).

30 years ago / 1490 in the Sea Circle Calendar

Young Kati Foram is taken from the South Seas to the Great Voyage.

28 years ago / 1492 in the Sea Circle Calendar

Nicole Robin is born (February 6th).

27 years ago / 1493 Sea Circle Calendar (more than four years before the date of the public execution, 27 years ago to be exact)

Gol D. Roger suffers from an incurable disease. The Roger Corsairs try to beg Kurokas, the highest rated doctor at the time, to join them on their final voyage, and Kurokas agrees to join them on their voyage in order to find out the whereabouts of the Rumba Corsairs.

26 Years Ago / 1494 A.D.

The O'Hara Scholars' "Text of History" expedition sails from O'Hara, and Nicole Olvia leaves her 2-year-old daughter, Nicole Robin, in the care of her brother's family.

24 Years Ago / 1496 A.D.

At the age of 10, Kati Follam makes a cannon out of scrap on Hulk Island in the Capital of the Seven Waters, and Tom, a shipwright, takes the abandoned child in.

23 Years Ago / 1497 A.D.

Three years after Kourokas joined the team, Roger claimed the Great Voyage, which was described as "impossible", and became known as the "King of Thieves".

Soon after, on Roger's orders, the Roger Pirates were secretly disbanded.

22 Years Ago / 1498 Years Ago

One year after the disbanding of the Roger Corsairs, Gol D. Roger turned himself in to the World Zhengfu and was arrested.

Roger is sentenced to death in the East China Sea town of Rogue, and the Age of Pirates begins.

The World Zhengfu's judicial ship arrives at the capital of the Seven Waters, and Tom is arrested for building Roger's "Oro Jackson" and is accused of assisting a vicious criminal in the commission of a crime. The judge then commuted Tom's sentence to ten years' probation and exoneration as a bargaining chip.

Kati Foram builds the Battle Frankie 8.

20 Years Ago / 1500 Years of the Sea Circle Calendar

Kamon's band of pirates arrives on Jumbo Island, where Kamon ends up stuck in a treasure chest and gradually becomes the guardian of Jumbo Island.

Hagovar D. Sauro, true to his belief in justice, freed Nicole Olvia, whom he had captured, and fled the Navy Headquarters with her.

Nicole Robin becomes an archaeologist.

CP9 came to O'Hara and captured all of O'Hara's history scholars, and after Dr. Klopa's shocking statement, the Five Elders ordered the obliteration of O'Hara, Spandain unleashed the Slaughter Order, and the entire island of O'Hara became a scorched earth, with the former Admiral Sauro defeated by the former Admiral Kuzan, and Robin living and dying after identifying herself with her mother, Olvia. After the incident, the Navy issued a wanted notice for Nicole Robin 79 million, Robin began a twenty-year-long fugitive career.

19 years ago / 1501 years of the Sea Circle Calendar

Sanji is born (March 2nd). Roroa Zoro is born (November 11th).

18 years ago / 1502 years in the Sea Circle Calendar

Nami is born (July 3rd).

Bellemere rescues Nami and Nochigo from the battlefield and brings them back to the village of Cocosia.

17 years ago / 1503 years of the Sea Circle Calendar

Usopp is born (April 1st). Monchichi D. Luffy is born (May 5th).

16 years ago / 1504 years in the Sea Circle Calendar

Vivi is born (February 2nd).

15 years ago / 1505 years in the Sea Circle Calendar

Chopper is born (December 24), abandoned by his parents because of his blue nose, and soon after, hardened by deer after accidentally ingesting a Devil Fruit.

A vicious incident occurs in a kingdom where pirates imprison 500 soldiers and threaten the king to hand over the throne, the world zhengfu sends a teenager, who ultimately quells the incident by killing 500 soldiers and the captain of the pirate group in a horrific manner, the teenager is CP9's Rob Luigi, who is 13 years old at the time.

12 Years Ago / Sea Circle Calendar 1508

The Sea Train, which Tom's Workshop had poured ten years of effort into, was finally completed, and the Smoky Tom made its first successful launch, rekindling the capital of the Seven Waters, which had been in turmoil for many years since.

11 years ago / Sea Circle Calendar 1509 years

The red-haired pirate group began stationed in the East China Sea windmill village.

Princess Vivi befriends a young man named Kousha, and after two fights, she becomes the deputy leader of the "Sand Sand Band". Kousha was injured when he was kidnapped by a gangster to protect Vivi. Shortly afterward, Kousha follows his father Doto and others to the desert to develop the oasis of Yuba.

10 Years Ago / 1510 Years of the Sea Circle Calendar

Red Hair lost his arm trying to save Luffy, and gave Luffy his straw hat afterward.

Vinbrun Kulik's pirate group accidentally arrives on Gaya Island, and Kulik separates from his crew to dive for the ruins of the Golden Country in the waters off Gaya Island, engaging in a duel of his own to illustrate manly romance.

Redfoot Tetsuo's Kulik pirates enter the Great Voyage.

Dongit, a nomad on the Long Chain Islands, begins a decade-long life on bamboo stilts.

The famous stage actress Victoria Hindley fell from the stage and died accidentally, soon after the disillusioned celebrity doctor Hobbuck accepted the request of Moonlight Moria who appeared in front of him and came to the horror three-masted schooner to participate in the zombie-making related matters in exchange for bringing Hindley back to life, and has since faded into obscurity in the world.

The giant Terror Trimaran of the Moria Pirates began to sneak into the Devil's Triangle waters.

Silbaz Reilly bumps into the red-haired Shanks on the Chambord Islands, and while Reilly asks about Shanks' straw hat and left hand, Shanks is full of glee and mentions a little kid in the East China Sea.

The owner of the little dog, Shoo-Shoo, owns a pet food store in the town of Shampoo Orange.

9 Years Ago / Sea Circle Calendar 1511

The Cook Pirates, led by Tetsuo the Redfoot, return to the East Sea from the Great Voyage.

Sanji was working as a chef trainee on a passenger ship, which was attacked by the red-footed Tetsuo, and the crowd encountered a storm, and soon Tetsuo and Sanji drifted to an isolated island, where they were rescued on the 85th day. Soon the two opened the sea restaurant Baratie.

8 Years Ago / 1512 A.D.

The village of Cocosia, where Nami lives, is overrun by the Dragon Pirates, and Bellemere, the adoptive mother of Nami and Notchgall, is killed by the Dragons. Shortly afterward Nami joins the Evil Dragon Pirates and makes a pact with the Evil Dragon to buy the village for 100 million berries.

The four sea train routes in the capital of Seven Waters are successfully constructed and opened to traffic one after another.

Kati Foram's Battle Franky 35 is completed.

The highest power figure in the world's zhengfu, the Five Elder Stars, authorized Spandam, who was then the chief officer of CP5, to retrieve the design plans for the Ancient Weapons. Spandam arrived at the Capital of the Seven Waters to find Tom, and later that night, Tom gave the design plans for the Ancient Weapons to two of his disciples, and three days later, Spandam ordered an attack on the Judicial Ship and succeeded in blaming the charges on Tom's studio, and ultimately, Tom was recaptured and returned to the Enneagram. Tom is eventually captured and returned to the island of Justice, where Iceberg and Kati Folam are pardoned. Afterward, Kati Folam is severely injured and disappears after using her body to defend herself against the Smoking Tom.

6 years ago / 1514 A.D.

A "World Conference" is held in the Holy Land of Marijoa, attended by many of the World Zhenfu's member nations, to defend against the revolutionary Monk D. Dragon.

Dr. Silk, a mediocre doctor, saves Joba from a serious injury, and then gives him his name and takes him as his son.

After destroying his hometown of Bika and leading a group of henchmen to take down Skepia, expelling the original God Kong-Kor and taking over the Shrine of the Gods to become the new god, Enilu begins to drive a team of gods to build the Ark Maxim.

The duo of Orangutan and Masra hear rumors that Vinbron Kulik is searching for the Golden Country on his own and come to join him in the salvage business.

5 Years Ago / 1515 Years of the Sea Circle Calendar

Dr. Sylk's condition worsens, and he will oust Joba. After renewing his life for over a week with the help of Kureva, and completing his research in his final hours, and then taking the Amiwu Mushroom that Joba had gone through so much trouble to retrieve, he eventually blew himself up in the square in front of the castle of the Kingdom of Zi Drum. Although his body was destroyed, his spirit lives on. Dolton released Joba, who came to fight for his life, and broke with King Valpo and was imprisoned for a long time. Kureva took Joba in and began to teach him the art of healing.

Iceberg, convinced by his skill as a shipbuilder, united the seven shipbuilding companies of the Seven Waters into the Grela Corporation.

CP9's Luigi, Kaku, Califa, and Bruno arrive in the capital of Seven Waters, infiltrate the company and the city, and begin an undercover mission to search for the plans for the Hades.

Brooke's ship is lured into the Terror Triptych, where she loses her shadow and wreaks havoc on Spooky Island, before being defeated by the zombie Ryoma, who is inhabited by her own shadow, and leaving the Terror Triptych in a state of limbo.

Nicole Robin enters the Great Voyage from the Western Sea.

The Usopp Pirates are formed.

4 Years Ago / Sea Circle Calendar 1516

Nicole Robin makes a pact with Krokodar to join the Baroque Workshop.

Kati Foram, who has become a reformed human, returns to the Seven Waters and meets with Iceberg in secret. Iceberg gives Foram the design of the ancient weapon Hades for safekeeping, and since then Kati Foram goes by the name of Franky and takes in the hooligans, thugs, villains, vagabonds, and down-and-outs of the Seven Waters to form the House of Franky. The House of Frankie" was formed, and started a brand new life as a shipbreaker, seller of materials, and bounty hunter.

3 Years Ago / 1517 A.D.

Captain Klaw, tired of his life as a buccaneer, hatches his own plan and succeeds in hypnotizing Morgan into taking the fake Captain Klaw back, and then travels to Candyman Village alone, where he is taken in by Koa's parents.

A three-year drought has begun in Alabaster, with not a drop of rain falling on the rest of the country, except for the capital city of Albana.

The pirate group that proposed to Lola was devastated by Moria's gang, and the group that lost their shadows began to purify zombies and collect a lot of shadows in the forest of Ghost Island.

Iceberg runs a successful campaign to become mayor of the Capital of Seven Waters.

Poskat D. Ace goes to sea.

2 Years Ago / Sea Circle Calendar 1518

Kirby is captured by Arlita to work as a navigator and slave for the Pirates.

A large number of Dancing Powder appear in the Alabaster port of Tunahana, shaking people's hearts and causing rebellion, and furthering the Baroque Workshop's plot.

1 Year Ago / 1519 A.D.

When Koya's parents die of illness in the Candy Village, Usopp begins to brag and joke with Koya.

1 year ago

Riley goes out to have fun and doesn't come home for half a year.

The Blackbeard Pirates destroy the Kingdom of Zi Drum.

Year 1 / 1520 of the Sea Circle Calendar

Remember this is the year that Monchichi D. Luffy set sail and the legend of the new generation of Pirate Kings began.

History, like a perpetually moving wheel, has never stopped moving forward, and the stories that have happened and are happening are linked together, and those who have left their names on this scroll have witnessed the myths of the past, and at the same time, are also creating a new legend.