1. Mattie's first wish came true in 2001.

2. Mattie's first wish was realized in 2001.

(Are both the same?)

3. His first poetry book, Heartsongs, came out and became a best-seller.

4. His first poetry book, Heartsongs, was published and became a best-seller.

(Are both the same in meaning?)

1 and 2 -- yes.

3 and 4 -- yes.

3and4__yes

1. Yes, both sentences convey the same meaning. They both state that Mattie's first wish was fulfilled or granted in the year 2001.

2. Yes, the meaning of these sentences is similar. Both indicate that Mattie's first wish was fulfilled or came true in 2001.

3. Yes, both sentences have the same meaning. They both state that Mattie's first poetry book, titled Heartsongs, was released and achieved significant success by becoming a best-seller.

4. Yes, both sentences convey the same meaning. They both indicate that Mattie's first poetry book, Heartsongs, was officially published and gained popularity by becoming a best-seller.