Texas Conference of Seventh-day Adventists was created in
1878.
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Yes, Seventh-day Adventists do believe in blood transfusions.
You may be confusing Seventh-day Adventists with Jehovah's
Witnesses, who are an entirely separate denomination.
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The main beliefs of Seventh-day Adventists are the seventh-day
Sabbath and the second advent, or second coming of Christ. There
are 28 fundamental beliefs in the Seventh-day Adventist
denomination.