The Democratic Party has been criticized for the fact that in its 188 year history, it was the party that promoted slavery, segregation, and lynching, being dominated for a long time by its ugly Southern membership.
This cannot be denied, but it is the Democratic Party which has also, in the last century of history, had many historical accomplishments.
Among these are:
First Catholic nominee for President–Alfred E. Smith 1928
First Catholic President elected–John F. Kennedy 1960
First Catholic Vice President elected–Joe Biden 2008
First Jewish nominee for Vice President–Joseph Lieberman 2000
First Jewish Presidential candidate as serious contender–Bernie Sanders 2016
First African American President–Barack Obama 2008
First Woman nominated for Vice President–Geraldine Ferraro 1984
First African American Presidential Contender–Shirley Chisholm 1972
First Woman nominee for President–Hillary Clinton 2016
First woman Secretary of State—Madeleine Albright under Bill Clinton
First Southerner elected President since 1848–Jimmy Carter 1976
Youngest elected President–John F. Kennedy 1960
President who gave us Social Security–Franklin D. Roosevelt 1935
President who gave us Medicare and Medicaid–Lyndon B. Johnson 1965-1966
One Term President who advanced Environmental Causes the most in history–Jimmy Carter 1977-1981
President who gave us ObamaCare–Barack Obama 2010
President who advanced Civil Rights—John F. Kennedy and Lyndon B. Johnson 1960s
President to appoint first Jewish Supreme Court Justice—Woodrow Wilson 1916 (Louis Brandeis)
President to appoint first woman Jewish Supreme Court Justice—Bill Clinton 1993 (Ruth Bader Ginsburg)
President to appoint first African American Supreme Court Justice–Lyndon B. Johnson 1967 (Thurgood Marshall)
President to appoint first Hispanic-Latino Supreme Court Justice—Barack Obama 2009 (Sonia Sotomayor)
President who promoted Containment Foreign Policy with the Soviet Union—Harry Truman
President who promoted concept of international cooperation—Woodrow Wilson and Franklin D. Roosevelt
First Woman Speaker Of The House of Representatives–Nancy Pelosi 2007
Most accomplished Congresses, Democratic controlled—-63rd and 64th (1913-1917) under Woodrow Wilson; 73rd and 74th (1933-1937) under Franklin D. Roosevelt; 89th Congress (1965-1967) under Lyndon B. Johnson; 111th Congress (2009-2011) under Barack Obama
Great Supreme Court Justices appointed by Democratic Presidents—Louis Brandeis 1916 by Woodrow Wilson; Hugo Black 1937 by Franklin D. Roosevelt; Felix Frankfurter 1939 by Franklin D. Roosevelt; William O. Douglas 1939 by Franklin D. Roosevelt; Thurgood Marshall 1967 by Lyndon B. Johnson; Ruth Bader Ginsburg 1993 by Bill Clinton; Stephen Breyer 1994 by Bill Clinton