Sources can be found at the end of the article.
1/30. Eminem lied to his ex-wife, Kim, and said he was taking Hailie to Chuck E. Cheese, but in fact he wanted to record her part for the song 97 Bonnie & Clyde.
2/30. Eminem wrote the hook for Just Lose It in 30 seconds.
3/30.He was still making payments on his trailer home when The Slim Shady LP dropped.
4/30. His mother sued his school in 1982 over the bullying Eminem received from DAngelo Bailey, the same bully he rapped about on Brain Damage. DAngelo Bailey sued Eminem for $1 million, claiming that Brain Damage hurt his reputation.
5/30. Became a father for the 1st time at age 23 when his girlfriend [now ex-wife] Kimberly Scott gave birth to their daughter Hailie Jade Mathers on December 25, 1995.
6/30. The name 'Eminem' came from his initials M(arshall) M(athers).
7/30. His wife Kimberly Mathers was granted physical custody of their 5-year-old daughter, continued financial support, a personal driver, and reinstatement of her credit cards. [August 2000]
8/30. On March 23, 2003 his song "Lose Yourself" from the film 8 Mile (2002) became the first rap song to win an Academy Award. He was not in attendance, and one of the song's co-writers, Luis Resto, accepted the Oscar on his behalf.
9/30. The only white person to ever be on the cover of "The Source" and "XXL" magazines.
10/30. To help support his mother, young Marshall worked as a short-order cook at a Michigan family restaurant called Gilbert's Lodge, making a mere $5.50 an hour. Five days before Christmas, and soon after releasing Infinite in 1996, he was fired from the restaurant; it also happened to be his daughter's birthday. He wrote "Rock Bottom" right after that.
11/30. He wanted to be a comic book artist when he was a kid.
12/30. Not only does he not know how to work a computer, he refuses to learn. "If I learn how to work a computer, I'm going to be on that b**** all day looking at comments about me, and it's going to drive me crazy." His manager says anytime he reads a blog or a review it affects him for a long time.
13/30. He failed the 9th grade three times until finally dropping out. He said that he was not stupid, but that he lacked an interest in school. All he wanted to do was rap.
14/30. His D12 band-mate, Proof, was best man at his second wedding to Kim Mathers (April 11th, 2006). Proof was killed in a night club shooting when a game of pool turned into a heated argument and then escalated into a physical altercation.
15/30. His 2000 album, "The Marshall Mathers LP", sold 1.76 million copies in the first week of release in the U.S., beating Britney Spears' "Baby One More Time" as the fastest-selling solo album in North America.
16/30. Eminem drew criticism from the gay community (including musicians) for "homophobic" lyrics, and defended himself by saying he was speaking in character, not from his own perspective.
17/30. Marshall first became inspired to rap when he discovered The Beastie Boys' 1986 classic album, Licensed to Ill, and competed in freestyle rap battles at a high school nearby.
18/30. His different names represent different Personas. He told Spin magazine Slim Shady is the name for my temper or Anger. Eminem is just the rapper, Slim Shady is the attitude behind him, and Marshall Mathers is who I am at the end of the day.
19/30. The one book he has read cover to cover, more than once, is LL Cool J's I Make My Own Rules. A big LL fan, Eminem says the 1998 autobiography is the only book he's read that wasn't just read to him as a child.
20/30. After looking at 93 top artists in over 25 genres of music, a study found that Eminem had the widest vocabulary. Coming in hot at a whopping 8,818 unique words used, Eminem topped Jay Z (6,899 unique words), Tupac (6,569 unique words), Kanye (5,069 unique words), and Bob Dylan (4,883 unique words). [read more about it here]
21/30. One time someone broke into Eminems house, made a peanut butter and jelly sandwich, and didnt steal anything.
22/30. He has said that after listening to My Name Is and The Real Slim Shady a few times, they became cheesy.
23/30. When Elton John and his partner got their civil union, Eminem sent them diamond cock rings.
24/30. Weird Al Yankovic wanted to shoot a video for the song Couch Potatoa parody of Eminems Lose Yourselfbut Eminem refused to give him permission.
25/30. When Vanilla Ice blew up in the early 90s, it crushed Eminem and made him feel like he didnt want to rap anymore.
26/30. In 2002, with three multi-platinum albums to his name, he was still driving a leased Mercedes-Benz.
27/30. The U.S. Secret Service considered taking action when he rapped, Id rather see the president dead on We As Americans.
28/30. Eminem has made time to establish foundations and support numerous charities. Some of these include: Eight Mile Boulevard Association, Marshall Mathers Foundation, ninemillion.org and Small Steps Project. The Marshall Mathers Foundation, in particular, is close to Eminems heart as it is geared toward working with at-risk youth in Michigan.
29/30. When Dre first met Eminem, Eminem was wearing a bright yellow tracksuit which he got from a sponsor because he didn't have the money to buy decent clothes. Dre thought he looked like a banana.
30/30. When he was just 20 years old, he was the driver in a drive-by shooting. However, the drive-by shooting was just with paintballs, but he was still arrested. The case was dismissed when the drive-by victim didnt show up to court.
(Source 1), (Source 2), (Source 3)