Primary source links (#2498)

* Update busing-boston.md

Fix broken links

* Update black-power.md

Fix broken links

* Update great-depression.md

app/views/primary_source_sets/black-power.md

@@ -60,23 +60,23 @@ What do the voices of Black Power activists contribute to our understanding abou
 1) Ask students to engage in group work around specific topics, then come together to discuss.
 
 ##### Group 1: Black Power Politics
-- [Malcolm X Radio Documentary](https://americanarchive.org/primary_source_sets/black-power/9_207-60qrfqmn) (1991)
-- [Stokely Carmichael Discusses Black Power](https://americanarchive.org/primary_source_sets/black-power/3_28-zp3vt1h700) (1966)
+- [Malcolm X Radio Documentary](https://americanarchive.org/primary_source_sets/black-power/9-207-60qrfqmn) (1991)
+- [Stokely Carmichael Discusses Black Power](https://americanarchive.org/primary_source_sets/black-power/3-28-zp3vt1h700) (1966)
 
 ##### Group 2: Nonviolence and Black Power
-- [Malcolm X Radio Documentary](https://americanarchive.org/primary_source_sets/black-power/9_207-60qrfqmn) (1991)
-- [Stokely Carmichael Discusses Organizing and Voting](https://americanarchive.org/primary_source_sets/black-power/1_28-zw18k75h85) (1966)
-- [Activist James Bevel Promotes Nonviolence](https://americanarchive.org/primary_source_sets/black-power/2_6688g8fs31) (1966)
+- [Malcolm X Radio Documentary](https://americanarchive.org/primary_source_sets/black-power/9-207-60qrfqmn) (1991)
+- [Stokely Carmichael Discusses Organizing and Voting](https://americanarchive.org/primary_source_sets/black-power/1-28-zw18k75h85) (1966)
+- [Activist James Bevel Promotes Nonviolence](https://americanarchive.org/primary_source_sets/black-power/2-6688g8fs31) (1966)
 
 ##### Group 3: Black Panther Party for Self Defense 
-- [Radio broadcast of Bobby Seale at “Free Huey Newton” Rally](https://americanarchive.org/primary_source_sets/black-power/5_28-q52f766p51) (1968)
-- [Black Student Takeover at Brandeis University](https://americanarchive.org/primary_source_sets/black-power/6_15-99p2w600) (1969)
-- [Angela Davis Speaks at Black Panther Rally](https://americanarchive.org/primary_source_sets/black-power/7_28-vh5cc0vc2h) (1969)
+- [Radio broadcast of Bobby Seale at “Free Huey Newton” Rally](https://americanarchive.org/primary_source_sets/black-power/5-28-q52f766p51) (1968)
+- [Black Student Takeover at Brandeis University](https://americanarchive.org/primary_source_sets/black-power/6-15-99p2w600) (1969)
+- [Angela Davis Speaks at Black Panther Rally](https://americanarchive.org/primary_source_sets/black-power/7-28-vh5cc0vc2h) (1969)
 
 ##### Group 4: Student Protests
-- [Stokely Carmichael Discusses Black Power](https://americanarchive.org/primary_source_sets/black-power/3_28-zp3vt1h700) (1966)
-- [Black Student Takeover at Brandeis University](https://americanarchive.org/primary_source_sets/black-power/6_15-99p2w600) (1969)
-- [Student Press Conference Following Student Takeover at Amherst College](https://americanarchive.org/primary_source_sets/black-power/8_305-1289335k) (1970)
+- [Stokely Carmichael Discusses Black Power](https://americanarchive.org/primary_source_sets/black-power/3-28-zp3vt1h700) (1966)
+- [Black Student Takeover at Brandeis University](https://americanarchive.org/primary_source_sets/black-power/6-15-99p2w600) (1969)
+- [Student Press Conference Following Student Takeover at Amherst College](https://americanarchive.org/primary_source_sets/black-power/8-305-1289335k) (1970)
 
 2)  Bring the groups back together for a discussion guided by the following questions:
 

app/views/primary_source_sets/busing-boston.md

@@ -53,23 +53,23 @@ What caused the Boston busing crisis?
 
 ##### Ask students to watch the following sources:
 
-- [Landsmark Press Conference](https://americanarchive.org/primary_source_sets/busing-boston/6_15-9qr4nq5d) (1976)
-- [Interview with Anti-Busing Activist](https://americanarchive.org/primary_source_sets/busing-boston/7_15-9057cs2x) (1976) *watch 00:00-2:20 and 07:57-11:06*
-- [Psychologist Thomas Pettigrew Interview](https://americanarchive.org/primary_source_sets/busing-boston/9_15-9zg6g70c) (1967)
+- [Landsmark Press Conference](https://americanarchive.org/primary_source_sets/busing-boston/6-15-9qr4nq5d) (1976)
+- [Interview with Anti-Busing Activist](https://americanarchive.org/primary_source_sets/busing-boston/7-15-9057cs2x) (1976) *watch 00:00-2:20 and 07:57-11:06*
+- [Psychologist Thomas Pettigrew Interview](https://americanarchive.org/primary_source_sets/busing-boston/9-15-9zg6g70c) (1967)
 
 According to each speaker, who was responsible for the Boston busing crisis? Why might these sources have such divergent views about who was responsible? Students should note the differing backgrounds of each person and identify ways in which their backgrounds influenced what they said. For example, the anti-busing activist is likely motivated to blame the “liberal establishment” for the busing crisis in order to deflect blame from anti-busing groups. 
 
 ##### Ask students to watch the following sources: 
 
-- [Boston Mayor Kevin White Addresses Residents of Boston Before Start of Busing](https://americanarchive.org/primary_source_sets/busing-boston/3_15-qj77s7j383) (1974)
-- [Boston Mayor Kevin White Requests Federal Support](https://americanarchive.org/primary_source_sets/busing-boston/2_15-9154dp1w) (1974)
+- [Boston Mayor Kevin White Addresses Residents of Boston Before Start of Busing](https://americanarchive.org/primary_source_sets/busing-boston/3-15-qj77s7j383) (1974)
+- [Boston Mayor Kevin White Requests Federal Support](https://americanarchive.org/primary_source_sets/busing-boston/2-15-9154dp1w) (1974)
 
 How are the two addresses by the mayor similar? How are they different? What happened between the filming of these two sources? (If students are unsure, ask them to watch the source labeled News Report About First Day of Busing.) The first clip was recorded before busing began, and the second was recorded after the violence in response to busing, which prompted Mayor Kevin White to seek federal support to implement the court order. Students should compare and contrast these documents in light of this contextual information.
 
 ##### Ask students to watch the following sources: 
 
-- [News Report About Landsmark Attack](https://americanarchive.org/primary_source_sets/busing-boston/5_15-93r0pt1f) (1976)
-- [Landsmark Press Conference](https://americanarchive.org/primary_source_sets/busing-boston/6_15-9qr4nq5d) (1976)
+- [News Report About Landsmark Attack](https://americanarchive.org/primary_source_sets/busing-boston/5-15-93r0pt1f) (1976)
+- [Landsmark Press Conference](https://americanarchive.org/primary_source_sets/busing-boston/6-15-9qr4nq5d) (1976)
 
 According to Landsmark, what prompted the attack on him? The second source was recorded at a news conference. What does that suggest about public interest in this event? How might public interest in the attack have influenced what Landsmark said during the press conference? Students should note that there was intense public interest in the attack on Landsmark and that he identified racism as the root of the problem. In his remarks, Landsmark advocated for change to address the various problems facing Boston. 
 

app/views/primary_source_sets/great-depression.md

@@ -61,29 +61,29 @@ What led tenant farmers and sharecroppers to unionize?
 
 **Group 1: The ways in which southern farmers, tenant farmers, and sharecroppers were uniquely affected by the Great Depression.**
 
-- [Oscar Fendler Discusses Landlords, Tenant Farmers, and Sharecroppers (1993)](https://americanarchive.org/primary_source_sets/great-depression/1_151-8w3804z53c)
-- [John Twist Discusses Poverty and Hunger (1993)](https://americanarchive.org/primary_source_sets/great-depression/2_151-rv0cv4cj90)
-- [David Groeppinger Discusses Economic Devastation in the South (1992)](https://americanarchive.org/primary_source_sets/great-depression/3_151-5m6251g16w)
-- [Nancy Neal Talks About the Missouri Roadside Demonstration (1993)](https://americanarchive.org/primary_source_sets/great-depression/4_151-3f4kk94t5p)
+- [Oscar Fendler Discusses Landlords, Tenant Farmers, and Sharecroppers (1993)](https://americanarchive.org/primary_source_sets/great-depression/1-151-8w3804z53c)
+- [John Twist Discusses Poverty and Hunger (1993)](https://americanarchive.org/primary_source_sets/great-depression/2-151-rv0cv4cj90)
+- [David Groeppinger Discusses Economic Devastation in the South (1992)](https://americanarchive.org/primary_source_sets/great-depression/3-151-5m6251g16w)
+- [Nancy Neal Talks About the Missouri Roadside Demonstration (1993)](https://americanarchive.org/primary_source_sets/great-depression/4-151-3f4kk94t5p)
 
 **Group 2: The New Deal and the Agricultural Adjustment Act, its implementation, and its negative impacts on tenant farmers and sharecroppers.**
 
-- [John Twist Discusses the Agricultural Adjustment Act and Its Consequences (1993)](https://americanarchive.org/primary_source_sets/great-depression/5_151-rv0cv4cj90)
-- [Former Sharecropper George Stith Discusses the Agricultural Adjustment Act (1992)](https://americanarchive.org/primary_source_sets/great-depression/6_151-nk3610wj5c)
-- [Oscar Fendler Discusses Evictions of Tenant Farmers and Sharecroppers (1993)](https://americanarchive.org/primary_source_sets/great-depression/7_151-gq6qz2340h)
+- [John Twist Discusses the Agricultural Adjustment Act and Its Consequences (1993)](https://americanarchive.org/primary_source_sets/great-depression/5-151-rv0cv4cj90)
+- [Former Sharecropper George Stith Discusses the Agricultural Adjustment Act (1992)](https://americanarchive.org/primary_source_sets/great-depression/6-151-nk3610wj5c)
+- [Oscar Fendler Discusses Evictions of Tenant Farmers and Sharecroppers (1993)](https://americanarchive.org/primary_source_sets/great-depression/7-151-gq6qz2340h)
 
 **Group 3: The reasons for the formation of the Southern Tenant Farmers’ Union.**
 
-- [George Stith Describes the Start of the Southern Tenant Farmers’ Union (1992)](https://americanarchive.org/primary_source_sets/great-depression/8_151-nk3610wj5c)
-- [Nancy Neal Discusses the Formation of the Southern Tenant Farmers’ Union (1993)](https://americanarchive.org/primary_source_sets/great-depression/9_151-gm81j97z4z)
-- [Nancy Neal Talks About the STFU’s Decision to Be Interracial and Nonviolent (1993)](https://americanarchive.org/primary_source_sets/great-depression/10_151-gm81j97z4z)
+- [George Stith Describes the Start of the Southern Tenant Farmers’ Union (1992)](https://americanarchive.org/primary_source_sets/great-depression/8-151-nk3610wj5c)
+- [Nancy Neal Discusses the Formation of the Southern Tenant Farmers’ Union (1993)](https://americanarchive.org/primary_source_sets/great-depression/9-151-gm81j97z4z)
+- [Nancy Neal Talks About the STFU’s Decision to Be Interracial and Nonviolent (1993)](https://americanarchive.org/primary_source_sets/great-depression/10-151-gm81j97z4z)
 
 **Group 4: The violent resistance to the union and the union’s legacy.**
 
-- [Miller Williams Discusses a Violent Response to the Union from White Southerners (1993)](https://americanarchive.org/primary_source_sets/great-depression/11_151-bz6154f72d)
-- [Nancy Neal Discusses the STFU as a Model for Change to Come (1993)](https://americanarchive.org/primary_source_sets/great-depression/12_151-st7dr2q284)
+- [Miller Williams Discusses a Violent Response to the Union from White Southerners (1993)](https://americanarchive.org/primary_source_sets/great-depression/11-151-bz6154f72d)
+- [Nancy Neal Discusses the STFU as a Model for Change to Come (1993)](https://americanarchive.org/primary_source_sets/great-depression/12-151-st7dr2q284)
 
-3. Bring the groups back together for a discussion guided by the following questions:
+3) Bring the groups back together for a discussion guided by the following questions:
 
 - How were Black tenant farmers and sharecroppers affected by the Great Depression? To what extent were their conditions unique?
 - Why was the Agricultural Adjustment Act, a program specifically designed to assist and bring relief to farmers, so harmful to tenant farmers and sharecroppers?