The UN General-Assembly, in its resolution 72/130, declared 16 May the International Day of Living Together in Peace, as a means of regularly mobilizing the efforts of the international community ...

“History Smashers: Earth Day and the Environment” by Kate Messner. (Ages 8-12. Random House Books for Young Readers. $9.99.) Kate Messner’s “History Smashers” series — which has ...