KidRex is a child-safe engine powered by Google. The site utliizes Google SafeSearch and maintains its own database of inappropriate websites and keywords. Offical fun and safe search site for kids, by kids.
Time Search is a good general resource for history teachers and students. Simply enter a year, press "go" and you're shown a list of significant events that happened in that year. Scroll up or down the list to see events that happened early or late in the year. Time Search lists events that happened worldwide. You can select historical themes to narrow your list of events. You can also narrow results by selecting a region of the world. Next to each item in your events list you will see icons indicating availability of related images, quick text references, and map references. Not all icons appear for all events