diff --git a/data/examples/saved-chart.xml b/data/examples/saved-chart.xml
new file mode 100644
index 0000000..2e612ea
--- /dev/null
+++ b/data/examples/saved-chart.xml
@@ -0,0 +1,20 @@
+<?xml version="1.0" encoding="utf-8"?>
+<chartinfo>
+    <data>
+        <name>Gergely Polonkai</name>
+        <place>
+            <country>Hungary</country>
+            <city>Budapest</city>
+            <longitude>47.49801</longitude>
+            <latitude>19.03991</latitude>
+        </place>
+        <time>
+            <year>1983</year>
+            <month>3</month>
+            <day>7</day>
+            <hour>11</hour>
+            <minute>54</minute>
+            <second>45</second>
+        </time>
+    </data>
+</chartinfo>
diff --git a/src/Makefile.am b/src/Makefile.am
index d19f7b2..94a30dc 100644
--- a/src/Makefile.am
+++ b/src/Makefile.am
@@ -11,6 +11,13 @@ BUILT_SOURCES = \
 				ag-resources.c \
 				$(NULL)
 
+astrognome_source_files = \
+						  ag-app.c     \
+						  ag-window.c  \
+						  ag-chart.c   \
+						  astrognome.c \
+						  $(NULL)
+
 EXTRA_DIST = \
 			 $(resource_files) \
 			 ag.gresource.xml \
@@ -19,7 +26,7 @@ EXTRA_DIST = \
 AM_CPPFLAGS = -DG_LOG_DOMAIN=\"Astrognome\" -DLOCALEDIR=\"$(localedir)\" -DPKGDATADIR=\"$(pkgdatadir)\"
 bin_PROGRAMS = astrognome
 
-astrognome_SOURCES = ag-app.c ag-window.c astrognome.c $(BUILT_SOURCES)
+astrognome_SOURCES = $(astrognome_source_files) $(BUILT_SOURCES)
 astrognome_LDADD = $(SWE_GLIB_LIBS) $(GTK_LIBS) $(top_builddir)/libgd/libgd.la
 astrognome_LDFLAGS = -rdynamic
 astrognome_CFLAGS = $(SWE_GLIB_CFLAGS) $(CFLAGS) $(GTK_CFLAGS) -Wall -I$(top_srcdir)/libgd
diff --git a/src/ag-chart.c b/src/ag-chart.c
new file mode 100644
index 0000000..9a42b44
--- /dev/null
+++ b/src/ag-chart.c
@@ -0,0 +1,28 @@
+#include "ag-chart.h"
+
+struct _AgChartPrivate {
+    gchar *save_buffer;
+};
+
+G_DEFINE_TYPE(AgChart, ag_chart, GSWE_TYPE_MOMENT);
+
+#define GET_PRIVATE(instance) (G_TYPE_INSTANCE_GET_PRIVATE((instance), AG_TYPE_CHART, AgChartPrivate))
+
+static void
+ag_chart_class_init(AgChartClass *klass)
+{
+    g_type_class_add_private(klass, sizeof(AgChartPrivate));
+}
+
+static void
+ag_chart_init(AgChart *chart)
+{
+    chart->priv = GET_PRIVATE(chart);
+}
+
+AgChart *
+ag_chart_new(void)
+{
+    return NULL;
+}
+
diff --git a/src/ag-chart.h b/src/ag-chart.h
new file mode 100644
index 0000000..4e4e38b
--- /dev/null
+++ b/src/ag-chart.h
@@ -0,0 +1,38 @@
+#ifndef __AG_CHART_H__
+#define __AG_CHART_H__
+
+#include <glib-object.h>
+#include <swe-glib.h>
+
+G_BEGIN_DECLS
+
+#define AG_TYPE_CHART         (ag_chart_get_type())
+#define AG_CHART(o)           (G_TYPE_CHECK_INSTANCE_CAST((o), AG_TYPE_CHART, AgChart))
+#define AG_CHART_CLASS(k)     (G_TYPE_CHECK_CLASS_CAST((k), AG_TYPE_CHART, AgChartClass))
+#define AG_IS_CHART(o)        (G_TYPE_CHECK_INSTANCE_TYPE((o), AG_TYPE_CHART))
+#define AG_IS_CHART_CLASS(k)  (G_TYPE_CHECK_CLASS_TYPE((k), AG_TYPE_CHART))
+#define AG_CHART_GET_CLASS(o) (G_TYPE_INSTANCE_GET_CLASS((o), AG_TYPE_CHART, AgChartClass))
+
+typedef struct _AgChart AgChart;
+typedef struct _AgChartClass AgChartClass;
+typedef struct _AgChartPrivate AgChartPrivate;
+
+struct _AgChart {
+    GsweMoment parent_instance;
+    AgChartPrivate *priv;
+};
+
+struct _AgChartClass {
+    GsweMomentClass parent_class;
+};
+
+GType ag_chart_get_type(void) G_GNUC_CONST;
+AgChart *ag_chart_new(void);
+
+void ag_chart_load_from_file(const gchar *path, GError **err);
+void ag_chart_save_to_file(const gchar *path, GError **err);
+
+G_END_DECLS
+
+#endif /* __AG_CHART_H__ */
+