5 Things You Need to Know Today, 6/20

1) Be ready for the heat to return today, with highs in the low 80s. Clear skies, so it's not a bad beach day. Temperatures will dip into the low 70s around dusk, and stay there for most of the night.

2) The offers today, and on Wednesdays throughout the summer. This free interactive exhibit gives kids a chance to experience what life was like for their colonial-era counterparts. Ideal for toddlers through fifth grade. For more, call (508) 548-4857, email fhs@cape.com, or visit http://www.falmouthhistoricalsociety.org.

3) invites the hungry to a . Come down between 5 and 8 p.m. for some steel drum music and authentic Jamaican cuisine, including jerk chicken and pork, fresh fruit salsa, and fried plantains. $19.95 for adults and children 10 and over, $10.95 for younger children, free for kids 3 and under. For more information, call (508) 563-2560, email cfarm@capecod.net, or visit http://www.coonamessettfarm.com.

4) The presents , at . Michael McNaught will explain this pivotal phase in America's bloodiest war, during which the fate of the union was decided by the battle between overwhelming resources and tactical genius. $4 for members, $5 for non-members, beginning at 6:30 p.m. For more, call (508) 548-4857, email fhs@cape.com, or visit http://www.falmouthhistoricalsociety.org.

5) This day in history: Congress officially adopts the Great Seal of the United States (1782); China's Boxer Rebellion begins (1900); and movies, and beach-going, are changed forever with the release of Steven Spielberg's Jaws (1975).