SAN FRANCISCO (KGO) -- When former 49ers quarterback Colin Kaepernick took a knee during the national anthem last year, he touched a nerve that continues to divide America over protest and patriotism.
Watch the video player above for a timeline of how the anthem protest has evolved over the past 15 months.
Click here for more stories and videos about national anthem protests.
TIMELINE: How anthem protests have evolved over past 15 months
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