(Church history from official sources)

"Nevertheless, it required time to wind down practices that were so deeply ingrained in family tradition and culture, especially when fermented beverages of all kinds were frequently used for medicinal purposes. The term “strong drink” certainly included distilled spirits like whiskey, which hereafter the Latter-day Saints generally shunned. They took a more moderate approach to milder alcoholic beverages like beer and “pure wine of the grape of the vine of your own make” (see D&C 89:6). For the next two generations, Latter-day Saint leaders taught the Word of Wisdom as a command from God, but they tolerated a variety of viewpoints on how strictly the commandment should be observed. This incubation period gave the Saints time to develop their own tradition of abstinence from habit-forming substances. By the early twentieth century, when scientific medicines were more widely available and temple attendance had become a more regular feature of Latter-day Saint worship, the Church was ready to accept a more exacting standard of observance that would eliminate problems like alcoholism from among the obedient. In 1921, the Lord inspired Church president Heber J. Grant to call on all Saints to live the Word of Wisdom to the letter by completely abstaining from all alcohol, coffee, tea, and tobacco. Today Church members are expected to live this higher standard."

"In the end, some overlap between the Word of Wisdom and the health reform movement of the nineteenth century is to be expected. This was a time of “refreshing” (Acts 3:19), a moment in history where light and knowledge were pouring down from heaven. On the night Joseph Smith entertained the angel Moroni for the first time, in the fall of 1823, the angel quoted a line from the Book of Joel and said it was about to be fulfilled: “I will pour out my spirit upon all flesh,” the passage read (Joel 2:28; emphasis added). Insofar as temperance reform made people less dependent on addictive substances, prompting humility and righteous action, the movement surely was inspired by God. “That which is of God inviteth and enticeth to do good continually,” the Book of Mormon stated (Moroni 7:13).27 Rather than concerning themselves with cultural overlap, Latter-day Saints can joyously contemplate how God’s spirit touched so many, so widely, and with such force."

https://history.lds.org/article/doctrine-and-covenants-word-of-wisdom?lang=eng