Jill Biden was born on June 3, 1951 in Hammonton, New Jersey, with her maiden name Jill Tracy Jacobs. She served as second lady for eight years.madamAmerica, when Mr. Joe Biden served as Vice President of the United States for two terms (2008-2016). His second wifeBidenconsidered a talented and highly educated person. Photo:AP.

As a child, Jill Biden grew up with four younger sisters in Willow Grove, Pennsylvania. She had good academic records since childhood. She later earned a Master's degree from Villanova University, West Chester University, majoring in English, and then a PhD in Education from the University of Delaware. She once studied fashion merchandising at a college in Pennsylvania but dropped out because she felt it was not suitable. Photo:BI.

During her time off from school, Jill took a modeling job for a local company. This is also how Joe Biden got to know her. According toBiography,Mr. Joe felt interested and wanted to learn more after seeing Mrs. Jill's photo on an advertisement at a bus stop. Photo:NY Times.

The couple first met in 1975, thanks to Mr. Biden's brother's matchmaking and introduction. Later, Mrs. Jill said she was conquered by her husband's dignified and mature demeanor of a politician. Photo:Getty.

The couple married in 1977, five years after Joe Biden's first wife and daughter died in a car accident. According to US media, it was not until the fifth proposal that Joe Biden finally accepted Jill. Jill is considered the one who helped her husband ease the loss and painful memories of his late wife's tragedy. She helped him raise his two sons, Beau and Hunter, before giving birth to their daughter Ashley in 1981. Photo:Getty.

Before becoming a familiar face in American politics, few people knew that Dr. Jill disliked being involved in politics. In her memoir, Jill mentioned that she did not want to speak in front of crowds at political events. She was skeptical about her husband's presidential campaign in 1988 but strongly urged him to run again in 2008. Photo:Reuters.

Jill is considered to be influential in her husband’s decisions, both in his work and personal life. However, people close to the Biden family have revealed that Dr. Jill does not like the title “adviser to her husband”. According to her, the two have a deep relationship and are soul mates. Photo:NBC.

As the second lady of the United States, she used her influence to actively support military families and issues related to women, especially education. In 2011, she and Michelle Obama launched an initiative to provide resources for education and employment as well as health and medical services for military personnel and their families. Photo:ABC.

This election season, Dr. Jill has once again been by her husband's side, providing direct support while his top advisers are stationed in various locations across all 50 states. In March, Joe Biden jokingly called his wife his "secret agent" after she personally blocked two protesters from running onto the stage to disrupt his speech. Photo:Reuters.

In addition to being a strong supporter of her husband's career, Jill also pursues her own work. She is considered one of the few female politicians with a side job. When Mr. Biden took office as Vice President in 2009, she continued to teach. That same year, she became a professor, teaching English at Northern Virginia Community College. This year's campaign marks the first time she has taken a break from teaching since giving birth to her daughter Ashley Biden. "She feels that if she doesn't devote herself to this campaign, she may not have another chance in the future," said a person close to Mrs. Biden. Photo:CNN.

In the eyes of the Biden family's five grandchildren, Jill is a grandmother with a youthful spirit who loves to play with her grandchildren. "We have a lot of memories with them," granddaughters Naomi and Natalie shared in a video recently released during the Democratic National Convention. Friends and former aides who have interacted with and worked with her also commented that she likes to play pranks and make her husband laugh. Photo:Vogue.

In July 2015, she visited Vietnam as the Vice President’s wife. During her Asia tour that year, she traveled to South Korea, Vietnam and Laos to engage government and civil society partners on issues related to increasing educational and economic opportunities for women. Photo:Mark Tuan.