"The official programme is a couple of meetings and a press conference in the evening," Wanyama said when asked how the president will mark his 74th birthday.
Museveni settled for September 15 as his birthday, after speculation and second-person accounts supported by what he calls a number of "historical and scientific" events that took place in 1944, the year when he says he was born.
Museveni says a veterinary guard who took part in the exercise, helped him get the year.
"She told me that she and her husband lived in the parish (omuruka) next to ours; that would be a distance of eight miles away. However, her sister in law (omuramukazi) was married in the village next to ours, Ruyonjwa (two miles away or less). She had undertaken okwangama (when a woman temporarily withdraws from her husband home on account of some disagreements and goes back to her father's or brother's household)," Museveni says.
"When she arrived at their home in Rwenchweera, she told them that by the time she left, Kaguta's wife had been taken to the hospital to deliver. Then after a few days, information came that Kaguta's (Museveni's father) wife had delivered and the month was September not August," Museveni further recollects.
Museveni then concluded that September 15, is the most probable date of birth. Museveni was reportedly born in Mbarara hospital but he says they had no records when he crosschecked.
"What a shame for somebody who was born in a government hospital to fail to know his date of birth, all on the account of faulty record keeping and storage."
Museveni never laboured to write about his date of birth in the first edition of Sowing the Mustard Seed which was first published in 1997.
In the recent years, Museveni has been having low profile events to mark his birthday either in church or with the family. In 2015, Museveni celebrated his birthday by attending morning prayers at Mount Zion Prayer Centre, Bukalango and in 2016 he shared a cake with his family.
Last year in August, Museveni celebrated his 70th baptism day at St Luke Church of Uganda, Kinoni archdeaconry in Rwampara, Mbarara district. According to church records disclosed during the celebration, Museveni was baptized on August 3, 1947, with his mother and father.
Opposition politicians have for a long time contested Museveni's probable date of Museveni, arguing that he under-reported his age. In 2011 for instance, Democratic Party youth wing - Uganda Young Democrats wanted to organize a birth party for Museveni claiming that he was born on December 4, 1937.