Google Now has become quite powerful and it offers exactly the information you’re interested in, from navigation directions and news updates to essential things like reminders.
If you’re making use of Now cards often, you likely have to perform a history cleanup every now and then to filter out the stuff you see in your feed. Just be aware doind this can remove some types of content Google Now was previously displaying for you.
To manage your Google Now history, the first thing you need to do is to launch it. There are several ways to do this: tap on the Google search bar on your home screen (if you have one) or open the Google app from your app drawer.
Google Now can also be launched by swiping up from the bottom of the screen or pressing the Home button. If you have the Google Now Launcher installer of if you own a Nexus 5 you can also just say ‘OK Google’ while on the home screen to bring up Google Now.
Ok, now that we got this out of the way and Google Now is on your screen, navigate to Settings -> Now cards -> Manage card history.
This will open the Google Now Cards History in Chrome, where you can see your previously viewed cards. However, only a short description is shown for each card and you can’t fully expand to see all their contents. What you can do is check the box next to a day to delete it.
You can also delete more stuff at once by opening the Options menu next to Google (the three-dots icon) and select Delete Options.
A pop-up menu will be displayed from where you can delete all the cards you’ve viewed on the current day, yesterday and if you choose the Advanced option it offers the possibility to delete cards from the past 4 weeks or all time.