April 16-26 — IIHF Under-18 World Championship, Zug and Lucerne, Switzerland
May 1-17 — IIHF World Championship, Prague and Ostrava, Czech Republic.
June 17 — Last possible day for Stanley Cup finals.
June 26-27 — NHL draft, Sunrise, Fla.
July 1 — Free agency begins.
How the US Mint and NIST are perfecting the money-making process.