Quick tips

• Anchor on Stonewall. The Stonewall uprising was in 1969 and the first Pride marches in 1970. Many cards fall either side of them.
• Groups before marches. Early organisations, in Berlin, Chicago and San Francisco, mostly came before the big public marches.
• Flags are late. The rainbow flag first flew in 1978, the transgender flag was designed in 1999, the Progress flag in 2018.
• Marriage is recent. Same-sex marriage began in the Netherlands in 2001; every other card about marriage comes after it.
• Swap, don't restart. Tap a placed card and then another place to swap the two.