It will be just after Cinco de Mayo, and close to the anniversaries of the Liberation of Europe by the Allies in 1945. You could share a stamp from Mexico, or one commemorating the end of WWII, or the liberation of a non-European country, or expressing the theme of Liberation in general. Interpret this theme broadly.
I'm being quite literal here, but you don't have to! I don't actually own this stamp. I copied this image from a blog on the internet The Fire Wire. This blog also has some information on Cinco de Mayo; so does Wikipedia. I promise in the future I will show only stamps I actually own. I look forward to your broad interpretations this week.
Theme next week: It is Mother's Day in the USA, and in other areas of the world. Let's share stamps of mothers and children; just children; just mothers (and Women's rights); children's art, even stamps that say LOVE. I have a heart-shaped stamp that I may use.