{"query":"1964-02-23","date":"1964-02-23","year":1964,"month":2,"day":23,"weekday":"Sunday","weekdayNumber":0,"isLeapYear":true,"dayOfYear":54,"daysInYear":366,"isoWeek":8,"isoWeekYear":1964,"doomsday":{"anchorDayNumber":3,"anchorDay":"Wednesday","div12":5,"mod12":4,"div4":1,"doomsdayNumber":6,"doomsdayName":"Saturday","doomsdayInMonth":29,"doomsdayDate":"1964-02-29","distanceToDoomsday":-6},"onThisDay":[{"date":"1954-02-23","title":"First mass inoculation of polio vaccine"}],"url":"https://whattheday.com/1964-02-23","api":"https://whattheday.com/api/weekday?date=1964-02-23"}