Luis Gonzalez of the Arizona Diamondbacks extends his hitting streak to 30 games with a two-run, 1st-inning home run in a 7 – 3 victory over the San Francisco Giants. Gonzalez, whose streak matches the longest this decade, becomes the 37th player in major league history to reach the 30 mark.

On May 18, 1999 — Luis Gonzalez of the Arizona Diamondbacks extends his hitting streak to 30 games with a two-run, 1st-inning home run in a 7 – 3 victory over the San Francisco Giants. Gonzalez, whose streak matches the longest this decade, becomes the 37th player in major league history to reach the 30 mark.

Source:
Baseball Reference May 18