It’s an understatement to say that cell phones have evolved in the 30-plus years since they entered mainstream society. But, despite all the things that our smart phones have to offer, they just don’t hit the same way that the earlier models did. Now, there is a chance to step back in time, thanks to the new digital Nokia Design Archive sharing sketches, photos, interviews and videos from the mid-1990s to 2017.

Aalto University, in Nokia’s home country of Finland, is responsible for the Nokia Design Archive. Its team of researchers has curated 700 entries and includes a repository with another 20,000 items and 959GB of born-digital files. Unseen content from iphonewhich released its first GSM hand-portable phone in 1992, did not disappoint. Anyone feeling extra nerdy (ahem, me) can even read through presentations with mood boards and concept designs.

The following nostalgia dive provides not only an ode to classic Nokia devices (and their very 90s style), but also an interesting look at how technology has evolved. “In the early years of Nokia, there was a real desire to understand people, how they live, what makes them tick. People need to think about what’s possible,” said lead researcher Professor Anna Valtonen in a release. “The Archive reveals how designers make visions concrete so they can be properly vetted before they become reality. It reminds us that we have agency and we can shape our world—by manifesting in the work of many people who do that.”

The Design Archive looks like a word graph floating in space, with topics including Mobile Games and Gaming — which provides an overview of the famous Snake game’s creation — and Phones Fashion and Accessories. The free platform offers four topic filters: products, aesthetics, design process and design strategy. In addition, you can find specific years for a better overview of the time period of your favorite model. The team hopes to continue adding more content as the project progresses further.