Before the completion of Les Cabinotiers Reference 57260 featuring a Hebraic perpetual calendar, Vacheron Constantin had already embarked on another record-breaking project.The same commissioner and ...

Is 2024 a leap year? Yes, 2024 is a leap year. Who created leap year? According to History.com, the Romans used a 23-day intercalary month called Mercedonius to align their calend ...